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"Whatever potential your house has will be realized in their capable hands. They are charismatic, imaginative and confident. Their attention to detail is meticulous and their presentation of your home will be stellar."

Meegan L. O.

"I have never seen two more competent, hardworking, professional REALTORS. I have been blown away by their service. I highly recommend them."

Jennifer A.

"I highly recommend Sarah Kowalczyk as a real estate broker. I was incredibly impressed with Sarah’s dedication and support throughout the process of selling my Marin home and purchasing a home in San Francisco. Sarah was professional, resourceful and completely present and accessible throughout my entire home selling and buying process. I know Sarah had many other active listings while she was helping me, but she made me feel like I was her top priority. She is savvy and incredibly smart. If I were to sell or purchase another property, I would hire Sarah again without hesitation."

Susanne C.

"Sarah Kowalzyck was an invaluable guide on the path to my first home sale. The San Francisco Bay area is known for its microclimates, even when it comes to square footage valuation. From the sea haven neighborhood to the Inverness ridge, Sarah's expertise with valuation is remarkable, and certainly positioned us for our first offer, in ten days. For my listing, Sarah paired her rarefied market knowledge with impressive multimedia components, including drone video and a high quality Open House brochure. My terms were met, including a very quick close with a rent-back contingency. Sarah made it possible for me to leave my dream home in the hands and hearts of new owners who’ll care for it as I did."

Caroline M.

"Lotte and her amazing team helped our whole family with a multple purchases in a newly constructed Condominium project, which had it's own set of unique twists and turns, but their constant support and seasoned experience made the multiple transactions happen simultaneously . We are so grateful for their work they did for us."

Suzanne Leonoudakis

"This team provided expedited and accurate guidance to correctly price and stage our home for sale. They carefully and patiently took us through their strategy, culminating in multiple offers and the final selection which allowed for a straightforward close benefiting both us and the buyer. Their professionalism is a dynamic and compelling blend of real estate and negotiation acumen along with the necessary empathy required for most people who are parting from or acquiring their most valuable, personal and prized asset - their home. Whether listing a property or searching for your next home, I highly recommend Sarah and Lotte."

David Cook
Litigation Consultant

"Lotte and Michela were SO great to work with. Super professional, knowledgeable and fun! My wife and I highly recommend them!"

Jeremy Devich

"My husband and I were doing a 1031 exchange with a house we owned in Colorado, so it was critical to be able to find a great property here in Marin County within 45 days of closing on our Colorado house. In the current tight housing market, that was going to be difficult. Lotte was "on it." She identified areas for us to begin looking, while our Colorado home was on the market. When we did find a great condo in Greenbrae, she helped us close the sale quickly and smoothly. Thank you Lotte!"

Carolyn Kohler

"As a buyer, I recommend the McGuire team without reservation. I had a long list of specific criteria for a property as my next home. Michela worked tirelessly with me to find the right fit. She was a pleasure to work with and was successfully strategic in negotiations to win the bid. When we hit some bumps along the way with the sellers, it was great to have Sarah and Lotte's sage input too. As a team, they know how to score a win for their clients!"

Marjorie Sun

"Lotte & Sarah - thank you for working diligently and consistently to get a great result with the sale of my property. Very happy!"

Tim Lyons

"Sarah and Team were highly efficient. We were in contract within a week upon putting our home on the market. I would highly recommend them to anyone who wants to sell their home fast and for a fair market value."

Jane Teel

"Sarah was recommended to us by a colleague at work and boy did she deliver. We haven't bought in 10 years and so much has changed since then--especially the Bay Area market! Sarah helped us navigate the challenge of buying in Marin and helped us find a real gem (below market value!). What you can expect from Sarah and her team: responsiveness, insight, and humor. The website is user-friendly and sent us great recommendations as soon as they were listed. When we identified a place we were interested in, Sarah or her associate Michela met us there promptly and were flexible with our work schedules. They let us come to our on conclusions but answered every question we had. Two thumbs up!"

Jared Baird
English Teacher and Sophomore Dean-Marin Academy

"Sarah and her team were terrific and I strongly recommend them! they were super prepared for the whole process of selling. They brought outstanding marketing materials to the job. When problems arose, they were great at "calming the waters" and providing good solutions. And, they were understanding of our personal schedules and accommodating to them. All in all, they led us through the smoothest, most successful real estate transaction we've ever had. Thanks Sarah, Lotte and Michela."

Tony Torrance

"We so enjoyed our experienced with Sarah and Michela. They were available for all of our questions, giving us their professional take on each step. They were also very patient, answering all of our first-timer questions. They gave us the benefit of their expertise while allowing us to make the final decisions, without any pressure. Our process could not have gone better, and we very thankful for all of their help!"

Josh Frechette
Director or Athletics - Marin Academy

"The McGuire team we chose to sell our Mill Valley home was stellar. The home sold in less than a week for 30% over asking; great success by all measures. And due to their strong expertise, careful guidance and professional, warm manner, it was a wonderful experience as well.

Thank you Lotte/McGuire!!"

Linda Raker
Interior Architect, Kaiser Permanente - Facilities Strategy, Planning and Design

"I am grateful for Lotte Moore's integrity and loyalty as a colleague. She is extraordinarily skilled in the mechanics of her profession and unusually sensitive to the emotional aspects of personal transitions in life."

Christopher Raker
Partner, Raker Architects LLP

"Michela is, simply put, the best. She worked with me, patiently, as I am now a first time homeowner and didn’t know how the process worked when we got started. She is creative and knowledgeable and always had my best interests at heart. She talked me out of a few places that were totally wrong for me and she helped me find the perfect place to call home. The Lotte, Sarah, and Michela team is amazing and I can not recommend them highly enough."

Rachel Zarrow

"I am in the real estate business but chose to work with this unbelievable TEAM of Lotte,Sarah and Michela!We wanted a quick close and with their Teamwork and strong marketing we received 8 offers and closed in 7 days!"

Ted M. Abe

"Sarah and Lotte are an amazing team to work with. They will exceed all of your expectations. They have attention to detail down to a science and they will communicate with you every step of the way. The journey with them begins with asking great questions, listening well and then helping you get what you want! If you are looking for first class service all the way through then this is the team to go to !!!"

Helen Abe

"Sarah and Michela were wonderful to work with! They were professional, patient, kind and creative and we’re thrilled to be in our new home! I’d highly recommend them to anyone buying or selling."

Allison Tryk
Director of Key Accounts

"Lotte & Co. did an excellent job in getting us oriented to Marin County and the housing / living opportunities and neighborhoods. Lotte was very patient with our questions and concerns and was able to help us find a fantastic home for our family in Mill Valley. We could not be more happy & satisfied with her professional time and attention she put into finding us a home!"

Kieran and Jackie Phelan
Pediatricians / homeowners

"Lotte, Sarah, & McGuire staff did an excellent job orienting us to the Bay Area & housing market.

They were very responsive to our questions and concerns and worked hard to understand our preferences and budget and facilitate our relocation to the home of our dreams.

They went above & beyond our expectations and found the perfect home to start our new life & adventure in southern Marin County!"

Kj Phelan

"Sarah and Lotte could not have done more for us! Sarah had to sell our house, a 100 acre farm, and if possible the farming business. Sarah is very smart, diligent, and fun to work with . She accomplished every goal, and found us our next perfect house! She really is the very best, putting lots of time into the project and representing her client's interest every step of the way. We had tried for several years to accomplish a sale, without any results until Sarah came along. Because of the nature of the property it didn't happen overnight, but Sarah pulled it off in spades.
You will love having her on your side!! Five plus stars!! Thank you Sarah and Lotte!"

Warren Weber

"My husband & I worked with Sarah & Lotte on both selling & buying.
The property we sold was not your typical listing. It was a multi parcel
large rural property which took several hours to show properly.
Sarah was on it from day one!
She gave each showing the time it required and brought creative ideas for each potential buyer. She is super smart, hard-working & knows her business. She brought integrity,
a great attitude , & a smile to every interaction. We have the utmost respect for this team & would definitely work with them again."

Amy Weber

"Kim and I had the pleasure of working with Sarah and Lotte on four home transactions -- the purchase and sale of our homes in Sausalito and Tiburon. In each instance, the buy was at the right price and the sales were top of the market. The combination of market knowledge, use of data and deal savvy made for a terrific customer experience. Sarah listens, informs and takes action; she is the best."

Edward Lange
Chief Executive Officer; Maxx Properties

"We were so pleased with the strong negotiations that Sarah did for us when we sold our home in Corte Madera. She has a soft and sweet exterior, but is extremely strong and intelligent. She knows when to be silent and when to speak which is very important! We consider both Sarah and Lotte to be great resources for any real estate dealings that we have."

Kay Keohane

"Lotte is professional, thorough, and caring! She helped me find my dream home. I had worked with others for two years. When I switched gears and asked for Lotte's help, she listened to my needs, hopes, and desires. With great patience and spunk, she showed me many homes to give me a clear idea of the market and my options. Then, she found me my perfect spot! And, again with knowledge of the process, resources, and encouragement, I bought it! Thank you for helping me with Home Sweet Home, Lotte!~"

Kathy Geissler Best
President Kathy Best Design

"From the first time we met with Lotte, we knew we were working with the best. Lotte is not only an expert in real estate, but she has such a lovely way with people - friendly, elegant and kind. It was so much fun to tour houses with her. She was always warmly welcomed and obviously has great relationships with everyone in the business. She loves what she does and it makes the process of touring and making offers such an enjoyable experience. I was amazed by her boundless positive energy. In addition, she has incredible knowledge of neighborhoods, the market, and what to look for when considering a house to buy. We ended up buying our dream home in an area we wouldnt have thought to consider if it hadn't been for Lotte's urging that we go and spend an afternoon exploring there. And when we were ready to put an offer together, it couldn't have been at a less convenient time for all involved. But both Lotte and Sarah were on it without skipping a beat. The deal involved some creative problem solving and Lotte kept working on getting us the best possible outcome until the very end, beyond what we would have asked for. We trusted her guidance and despite buying at what seemed the very top of the market, our home has increased in value considerably over the few years we've lived here. I cannot recommend Lotte and Sarah enough. They are truly the very best."

Nicole Trautsch

"We all want to do business with those individuals and companies who are responsive, transparent, honest and knowledgeable.
My dealings with Lotte and Sarah, have hit each one of these benchmarks. Would recommend this team to any home buyer."

H.G. (Toby) Mumford

"Sarah and Lotte sold my house in Ross. It was a home of 24 years and a rather complicated time. They not only took over the sale of my house but also comforting me. Rather than a stressful, difficult move, it turned into a breeze and established new friendships. They are professional, kind, and fun. Five stars. No, ten."

Jeanne Barr

"Based on a recommendation from a good friend, we contacted Lotte after purchasing a condo we planned to remodel and sell. As soon as we met her, we knew she was someone we wanted to work with. She came to the meeting ultra-prepared, was super professional and personable. It was obvious she really knew what she was doing and we found it easy to trust her from the very beginning. Throughout the entire process of remodelling, staging, photographing, listing and selling, Lotte gave us great advice, assisted with a sticky situation we encountered with a tenant in the building, listened to what we were hoping to achieve from the sale, ensured the whole process went as smoothly as possible and pushed hard to help us achieve our goal. Whenever anyone talks about buying or selling in Marin, we always refer them to Lotte and her partner Sarah."

Andrea Griffin

"Sarah and Lotte are simply the best realtor team in Marin. Period. Sarah helped me sell my home in Woodacre (which took a while because of the recession; yet Sarah was always patient, understanding and looking after my best interests) and purchase a lovely new home in Sonoma County. Sarah is truly brilliant, highly experienced, very responsive and extremely savvy when it comes to negotiating. I couldn't be happier with the manner in which this team operates - again, simply the best!"

Mary ONeill

"Lotte and Sarah provided us with an honest, thoughtful, and effective counseling and negotiating team for the purchase of a our 2nd home in Point Reyes Station. We would enthusiastically recommend them both to other buyers and sellers."

Don Morrill

"When we purchased our home here in Marin, the transaction was complicated by us residing overseas and having a compressed time in which to find a home. We were dealing with all sorts of transitioning decisions and were fortunate to have Lotte in our corner. What an amazing agent! She was well-prepared, extremely knowledgeable about the market and the inventory, went to a great deal of effort to understand our needs, helped us to explore and reflect on our options, and made our purchase decision painless. Lotte was patient, encouraging, extremely helpful and supportive, and we consider her to be the best agent we have ever worked with. We also spent a day with Sarah and it was clear, they are a great team, who rely on one another and work as a partnership."

Carol Bagattini

"Lotte and Sarah were w dream to work with. They really listened to our needs and were very patient through the process. They learned who we were and were able to bring us a very unique home. Couldn't be happier and have already referred them to several friends."

Robert Balmaseda

"I had the great pleasure of working with Sarah twice, as a buyer and a seller. Sarah is the ultimate professional. She takes care of everything and no detail however small is missed. This woman knows her stuff!"

Lucienne Hoffman

"Lotte and Sarah are the most professional, knowledgeable and responsive real estate team I have ever worked with. I have purchased many high-end single family homes in Marin County and have worked with many different realtors over the years. Lotte and Sarah are simply the best, and are totally dedicated to providing an "added value" and meeting the clients real estate objectives."

Robert Thull
Executive Chairman, Milestone Equipment Holdings LLC

"Lotte and Sarah,In both my real estate dealings with them, proved to be reliable, well-informed, professional, ethical and knowledable . Their pleasant personalities
along with their helpful guidance through all the transactions were great assets.
I would hightly recommend these realators to anyone interested in selling or buying property. I have been completely satisfied in every respect of my transactions with them and the company."

Barbara Tarasoff
Two time real estate client

"Sarah and Lotte are so gifted at what they do. They are smart powerful and kind and the kind of people who you'd invite over to dinner in your new beautiful dream home they made happen!"

Elizabeth Gorek

"Lotte and Sarah did a great job representing us as buyers of our first home. They provided very good advice and exceptional service. Also, tenacious negotiators. Highly recommend them both."

Paul Glover
Managing AE

"We only have the very highest praise for Lotte who found us our dream house a few years ago. She was completely professional in every regard and a total delight to work with."


"I had the pleasure of working with Lotte on several transactions. She was always professional, negotiating expertly with both sides to create a mutually beneficial agreement. Sarah was exceptional in supporting her partner during the process."

Annette B

"Lotte and Sarah made all the difference! They gave expert, detailed recommendations on how to improve our property in preparation for sale in order to achieve the highest return on our investment. They also guided the sale so that market timing and pricing hit the perfect sweet spot, resulting in a full-price sales contract just 5 days after the house was listed! Uber-professional and forward thinking, I would return to this dynamic duo in a nano-second for my next real estate transaction."

Norm Hunter

"Sarah helped my buy a house for my son in Petaluma. Her work was absolutely stellar! She negotiated a good price, worked diligently with the other agent to make the sale happen, stood by me through the entire process, made buying recommendations that saved me thousands of dollars. I've bought many houses over the last 40 years, and my work with Sarah was the most outstanding and satisfying of all transactions. I highly and unequivocally recommend Sarah to you for your next buying/selling project."

Frank Werblin
Home owner/buyer

"My husband and I sold 2 homes and purchased one through Sarah and Lotte! We also used McGuire when we sold our San Francisco Condo for above asking! Our experience with Sarah and Lotte as well as the rest of the McGuire Team has been first rate all the way around! We highly recommend Sarah and Lotte for all your Real Estate needs!"

Kimberly Lange

"My wife Beth and I worked with Sarah to find a place in West Marin. She is very knowledgable and helpful. Sarah located a place for us and guided us through a complicated transaction because the seller was a family trust. Sarah was a tough negotiator. She kept us well informed. She gave us good advice. We are the proud owners of the home we sought."

Barry Gorelick

"I highly recommend Sarah Kowalzyck as a real estate broker. I was incredibly impressed with Sarah's dedication and support throughout the process of selling my Marin home and purchasing a home in San Francisco. Sarah was professional, resourceful and completely present and accessible throughout my entire home selling and buying process. I know Sarah had many other active listings while she was helping me, but she made me feel like I was her top priority. She is savvy and incredibly smart. If I were to sell or purchase another property, I would hire Sarah again without hesitation."

Susanne C

"I have never seen two more competent, hardworking, professional REALTORS. I have been blown away by their service. I highly recommend them."

Jennifer A.

"Whatever potential your house has will be realized in their capable hands. They are charismatic, imaginative and confident. Their attention to detail is meticulous and their presentation of your home will be stellar."

Meegan L. O.

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