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, Land and Property Management needs. 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 & Property Manager serving the Mountain Empire 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 - Realtor/Administrative Assistant

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!

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 mowing and maintenance. He is a valuable asset to Sonoita Realty as a Co-Owner and Maintenance Manager and a respected resident to the community offering his assistance where needed.