Anna Costa

I help motivated buyers and investors move quickly and strategically in competitive Bay Area markets. If you’re serious about finding the right property, I’ll make sure you don’t miss it.

Real estate brings together my three greatest passions: architecture, construction, and helping people. As a licensed real estate professional since 2005 and a longtime Bay Area resident, I provide knowledgeable, personalized representation to buyers, sellers, and investors throughout Silicon Valley and the greater Bay Area. My clients value my deep market knowledge, honest guidance, responsive communication, and strong negotiating skills. Whether preparing a home for sale, developing an effective marketing strategy, evaluating properties, or negotiating an offer, I work tirelessly to protect my clients’ interests and secure the best possible results. I understand that buying or selling a home is both a major financial decision and a personal milestone. My goal is to make every transaction seamless and stress-free while providing exceptional service, sound advice, and dedicated support from our first conversation through closing and beyond.

Rick Warner is a Vanguard Properties Top Producer, founder of The We Group, Certified Probate and Trust Specialist and Certified Residential Real Estate Divorce Specialist serving Petaluma, Santa Rosa, Novato, Rohnert Park, San Rafael and communities throughout Sonoma and Marin Counties. With more than 22 years of experience, 500+ confirmed transactions totaling more than $351 million in closed sales, and 130+ five-star client reviews, and recognition as a Top 1% REALTOR® since 2014, Rick specializes in probate, trust, and divorce-related real estate while also helping buyers, sellers, investors, and luxury clients achieve successful outcomes through strategic guidance, skilled negotiation, and exceptional service.