About Mary Ann

With over thirty five years experience Mary Ann Souza has a unique and strategic approach to meeting the scope of buyer and seller needs.  She is consistently referred to new buyers and sellers because of her reputation and exceptional knowledge of neighborhoods and country property throughout the wine country.  Mary Ann's referral and repeat customers account for the majority of her business because buyers and sellers trust her standards and work ethic.


Mary Ann's focus is residential homes, luxury estates, country property, condominiums and townhomes.  Vineyard and winery seller or buyer needs are met through close association with the most seasoned and talented specialists in the business.  She knows Napa and Sonoma Valley areas, marketing real estate and possesses the drive for finding the right dream property for her buyers. She is connected with the most competent Real Estate specialists including top lenders, title companies, specialty property inspectors, labs, photographers and brilliant home staging companies.  Mary Ann also networks with knowledgeable Napa and Sonoma Valley commercial, industrial and winery experts to meet client goals and expectations.


Mary Ann’s smart move in 1996 to Napa Valley’s wine region has presented the greatest opportunity to serve buyers in pursuit of unique property and sellers keen on savvy marketing. She lives among the best real estate offerings ranging from vineyard estates, in-town homes close to all conveniences, starter digs, and land. Her client roster hails multigenerational families, young technology talent, local chefs, winemakers, grape growers and entrepreneurs. The common thread - all are busy and Mary Ann facilitates and oversees important aspects of the buy and sell process. 


Today, Compass Real Estate is recognized worldwide as the go-to company in all matters of Real Estate.


Mary Ann's affiliations include the National Association of Realtors, California Association of Realtors, Northern California Association of Realtor and Bay Area Real Estate Information Services.  When she is not scouting for interesting property Mary Ann enjoys, gardening, photography or reading anything from tech blogs to cowboy poetry.

Client Testimonials

Mary Ann is so thorough, takes the extra steps, educated and is patient with her clients. She coordinated and pulled us through escrow flawlessly. This period was less stressful due to her caring and diligent approach towards everything she does!

- T. & R., Napa

Thank you for all your hardwork and dedication to us. We love our new home and neighborhood. Keep in touch.

- A. & J., St. Helena

Thank you for all of your incredibly hard work and excellent advice. You are always welcome here....Thanks again and till the next house!

- Love, T., Yountville

I don't know where to start! There are simply no right words to let you know how appreciative we are for all that you have done

- Love, R., St, Helena

All these years of looking finally paid off. Thank you for all your help and patience..

- Love, R. & M., Glen Ellen

How can I ever thank you for all your hard work? Thank you for my new life in God's country.

- Love, Sharon, Napa.

Your professionalism and attention to detail were very appreciated. Please accept a small token of our thanks.

- L. & L., Napa

Mary Ann Souza’s Listings

Listed By Compass
1330 Firview Drive

Calistoga, CA 94515

2 BD
3.5 BA
2,792 SF
Listed By Compass
4 San Lucas Court

St. Helena, CA 94574

2 BD
2 BA
1,560 SF