Mary Ellen Jansen

Mary Ellen Jansen
Real Estate Agent (Salesperson)
Sebastopol CA

Salesperson (CA: 01365064)

23 years experience

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

Contact Information

Brokerage
Vanguard Properties | Sebastopol Office

Office Website
Office Address
6790 McKinley St Ste 120
Sebastopol, CA  95472
(Sonoma County)
Office Phone
415-321-7000
Office Fax
707-824-9009
Mobile
707-829-2011
Email
mary.jansen@vanguardsonoma.com

Service Areas

Santa Rosa: CA Graton: CA Occidental: CA Sebastopol: CA Freestone: CA Bodega: CA

About Mary Jansen

**Mary: Your Trusted Real Estate Partner**

In the ever-evolving real estate landscape, having an experienced agent who prioritizes your needs is essential. Licensed since 2003, Mary brings a distinctive combination of business acumen and marketing expertise to the table. With degrees in both business and internet marketing, she is deeply passionate about real estate.

Mary understands that buying or selling a home is a significant life decision. She is committed to guiding her clients through every step of the process, from strategically positioning properties in the market to negotiating the best possible outcomes. Her blend of analytical skills and genuine care ensures that your transition to a new chapter is not only successful but also smooth and positive.

Outside of her professional endeavors, Mary enjoys exploring the natural beauty of the Sonoma coast, kayaking on the Russian River, and savoring local wines. She is also a proud owner of a Siamese cat named Sushi and has a keen interest in discovering unique finds at antique flea markets.

If you are interested in understanding your home's value, Mary is ready to assist. She welcomes the opportunity to conduct research and engage in a meaningful conversation with you.

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

$1,698,979
Avg. Listing Price
From Mary'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

When businesses need to reach working real estate agents in Sonoma County, a verified agent email list is the fastest way in. Mortgage lenders use it to introduce loan programs directly to agents who can send referrals. Title companies use it to pitch closing services. PropTech companies use it to demo software. Recruiters use it to poach top producers. Insurance providers and continuing education companies rely on it to put offers in front of a captive licensed audience that has ongoing professional obligations and purchasing needs.

This list covers every actively licensed real estate agent operating in Sonoma County, California — {{AGENT_COUNT}} agents total, with {{CELL_COUNT}} cell phone numbers included for campaigns that go beyond email. Whether you are running a cold email sequence, a ringless voicemail drop, or building a custom audience for LinkedIn matched targeting, this data gives you the reach to do it right. Buying a Sonoma County real estate agent email list from a source that actually maintains the data is what separates a campaign that converts from one that bounces into a void.

Why Buy a Sonoma County Real Estate Agent Email List From Dr Bill

Every record in this list is sourced directly from the California Department of Real Estate licensing database, cross-referenced against active license status, and verified for email deliverability. The list is refreshed with new agents added weekly, scrubbed monthly to remove bad addresses, and completely rebuilt from source data bi-annually. That process is why we back this list with a 96% deliverability guarantee — something no discount data vendor can honestly offer because they are not doing the maintenance work behind it.

Dr Bill has been in the list business since 2005 and has sold over 31,000 lists. That track record matters when you are putting budget behind an outreach campaign. Cheap alternatives recycle stale data and sell the same unverified file to everyone. This list is available at the state, county, city, and zip code level — and no other vendor segments agent data down to individual zip codes within Sonoma County the way we do. That granularity lets you target precisely instead of over-mailing.

How to Use This Sonoma County Agent List

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.

The list can be segmented by broker versus individual sales agent, letting you pitch broker-owners differently than rank-and-file agents. A recruiting firm targets those segments with completely different messaging. So does a CE provider versus a mortgage lender. That flexibility makes one list usable across multiple campaigns without buying new data each time.

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, Mary Jansen has 1 property for sale in Sebastopol and surrounding areas.

$1,789,000

Listed 2026-03-12

2239 Redwood Rd Unit Abc
Napa, CA  94558

Beds: 9.0
Baths: 6.0
Sq Ft: 5,067
Lot: 20,904 sf
Single Family Map
View Full Details

Current Property Rentals

Mary Jansen currently has no rental properties available in Sebastopol and surrounding areas. Check back later.