Our Team

Sonoita Realty is a locally owned & operated Full Service Real Estate firm with a reputation as a solid and trustworthy company established in 1991. We are the only FULL SERVICE real estate company in Sonoita! A team that works together for all your Residential, Vacant & Improved Land, Commercial and Property Management needs serving faithfully throughout the Mountain Empire region of Southern Arizona. Realtors, National Association of Realtors.

Our Team of Agents

Kathy O'Brien - Broker/Owner

kathyobrien@sonoitarealty.com / (520) 405-1800


Kathy O’Brien is a hardworking hands-on real estate Broker/Owner & Property Manager serving the Mountain Empire communities since January 1998. Her family has deep respected roots in the community and she continues their legacy by building a solid reputation as a "trustworthy" professional dedicated to the needs of her clients. Extensive knowledge of the community with the highest level of skill and care has made her a top producer & relocation specialist. She has experience in dealing with the most difficult transactions to the easiest and believes “every” client matters! She knows the Mountain Empire in ways only a long-time local can- Better, because she is trained to spot problems & opportunities in properties, looking beyond the outward appearance. Her community service to news & other local issues makes her a reliable Realtor to Buyers and Sellers to skillfully represent your interests!

David Baker - Sales Associate

classicpropertiesaz@gmail.com / (520) 818-8130


David Baker has over 35 years of real estate experience, having been a successful builder/developer/investor, and business executive managing substantial land holdings for native American groups. David has the experience, attention to detail and patience to help you with your real estate needs.

Nancy Stiffey - Sales Associate-Realtor

nancystiffey@sonoitarealty.com / 520 471-6506


Nancy Stiffey is a wonderful, dedicated and studious individual with a giving heart! She relocated to Sonoita from Tucson in 2013 after falling in love with the community over 20 years ago. Her background in business management and education offers a keen insight into the Real Estate industry. She is always up to the task or challenge at hand and is the first to help anyone in need! As a very reliable individual, you can count on Nancy to work hard for you with all your real estate needs!

Dee Demski-Sales Associate-Realtor - Realtor

deedemski@sonoitarealty.com / 520 400-1393


Dee Demski has been established in the Sonoita community since 2004. With a background in the beauty industry of over 23 years she then decided to purchase an existing Hair salon that she currently owns and operates in Sonoita. She also has experience working as local EMT/Firefighter for the Sonoita/Elgin Fire District. This self-dedication of serving others is the reason why she has joined the Profession of Real Estate to help those in search of selling or purchasing in the community that is dear to her heart. With a passion for Equestrian activities including trail riding and the wine culture, makes her a skilled local to better assist and inform her clients about the Mountain Empire as it relates to real estate market.

Liz Stoner - Sales Associate/Realtor

lizstoner@sonoitarealty.com / 408 718-9844


Liz Stoner is a California native with experience in a property management firm in the San Jose area. Her father relocated to Sonoita many years ago and Liz followed him in 2013 where she could enjoy ranch life with her beautiful horses and mischievous burro, Poncho. In the Sonoita area, she worked in bookkeeping and office management until securing her real estate license. She is a hard working and dedicated member of the Sonoita Realty team, a creative problem solver, and she is ready to help you with your buying and selling needs. She feels there is nowhere more beautiful than our area we call the Mountain Empire consisting of Sonoita, Elgin & Patagonia communities.

Other Team Members

Eddie O’Brien – Co-Owner / Maintenance Manager

kneobrien@gmail.com / (520) 784-4354


Eddie O’Brien has over 35 years in the construction industry in Tucson, AZ with a background in heavy equipment & project management/Estimator. He relocated to Sonoita in 2009 after marrying his wife, Kathy O’Brien and launched his own business, Fast Eddie’s Maintenance. He is a valuable asset to Sonoita Realty as a Co-Owner and Maintenance Manager and a respected trustworthy resident to the community offering his assistance where needed.