Diana Rose Gorsiski

Diana Rose Gorsiski
Real Estate Agent (Salesperson)
Petaluma CA

Salesperson (CA: 01704905)

21 years experience

REALTOR® 1 Active Listings Serves Sonoma County, CA
View on Realtor.com

Contact Information

Brokerage
Vanguard Properties | Petaluma Office

Office Website
Office Address
151 Petaluma Blvd S Suit
Petaluma, CA  94952
(Sonoma County)
Office Phone
707-789-0400
Office Fax
707-789-0300
Mobile
707-494-9475
Email
diana@vanguardsonoma.com

About Diana Gorsiski

Diana is a dedicated advocate for homeowners' rights, a commitment that has shaped her career in real estate. She began her journey as a mortgage broker and REALTOR® during a challenging market downturn, quickly pivoting to assist homeowners facing foreclosure. Her expertise in short sales and loan modifications solidified her reputation in the industry. In recognition of her contributions, she was honored as the REALTOR® of the Year in 2012 and received the Edjar K. Hansen Award in 2013 for her generous sharing of knowledge with fellow REALTORS®.

Diana's commitment to homeowner advocacy continued as she took on the role of Director for the California Association of REALTORS® in the North Bay's Region 4. She served as President of the Petaluma Chapter and later led the North Bay Association of REALTORS® as President in 2017. With a network of over 3,200 agents and affiliates, Diana remains devoted to supporting both REALTORS® and her clients. Her leadership was further recognized when she was tasked with establishing a new Petaluma office for Vanguard Properties in June 2017.

As a national trainer and one of the top performers in her field, Diana combines patience and a wealth of knowledge to mentor both new and seasoned agents. She believes that her active role as a leading agent allows her to provide valuable insights into achieving success and maintaining industry relevance in today’s market. Her business thrives primarily on referrals, and she is deeply appreciative of her loyal clientele.

Originally from New York, Diana has called Sonoma County home since 1990. She draws strength from her supportive husband and two sons, who are recent college graduates. The family enjoys sailing and actively participates in community fundraising efforts, particularly for homeless children.

**Professional Affiliations:**
- Director, California Association of REALTORS® (CAR), 2014 to Present
- President, North Bay Association of REALTORS® (NorBAR), 2017
- President Elect, North Bay Association of REALTORS® (NorBAR), 2016
- Secretary, North Bay Association of REALTORS® (NorBAR), 2015
- Petaluma Director, North Bay Association of REALTORS® (NorBAR), 2014-2016
- President, NORBAR-Petaluma Chapter, 2012
- Board Member, NORBAR-Petaluma Chapter, 2011-2014
- Member, California Association of REALTORS® (CAR), 2007 to Present
- Member, National Association of REALTORS® (NAR), 2007 to Present
- Contributor, California Silver Bear RAF, 2017

Sonoma County, CA Real Estate Market Analysis (Single Family Homes)

$1,698,979
Avg. Listing Price
From Diana's portfolio
3.2 / 2.7
Avg. Beds/Baths
Typical property size
2,288 sf
Avg. Square Footage
Interior living space
1235
Active Listings
Current inventory

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Email outreach is the primary use case, and this list plugs directly into cold-email platforms built for high-volume prospecting. Zap Contact at zapcontact.com is purpose-built for this kind of campaign and works seamlessly with the file format we deliver. You can also use the data for direct mail, SMS, or phone outreach using the included cell numbers, and import the emails into LinkedIn for matched audience ad targeting that reinforces your cold outreach.

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Why Sonoma County, California Agent Data Matters

Sonoma County covers a wide geographic footprint that includes Santa Rosa, Petaluma, Rohnert Park, Windsor, Healdsburg, Sebastopol, Sonoma, and Cotati. Agents working these markets are distinct from agents in San Francisco or the East Bay, and a statewide blast treats them the same — which wastes budget and dilutes relevance. Local targeting means your message speaks to the market conditions and community that Sonoma County agents actually operate in every day.

With {{AGENT_COUNT}} actively licensed agents in the county carrying verified email addresses, and {{CELL_COUNT}} of them reachable by phone, you have meaningful scale without paying for a statewide file you do not need. Zip-code-level filtering lets a Petaluma title company ignore Santa Rosa agents entirely, or a lender target only the highest-density zip codes first. That kind of precision is only possible when the underlying data is built and maintained the right way — which is exactly what this list delivers.

Current Property Listings

As of 6/27/2026, Diana Gorsiski has 1 property for sale in Petaluma and surrounding areas.

$459,000

Listed 2026-05-29

79 William St Apt D
Cotati, CA  94931

Beds: 2.0
Baths: 1.5
Sq Ft: 1,250
Lot: 588 sf
Condo Map
View Full Details

Current Property Rentals

Diana Gorsiski currently has no rental properties available in Petaluma and surrounding areas. Check back later.