Heather Flaherty Cosgrove

Heather Flaherty Cosgrove
Real Estate Agent (Salesperson)
Jacksonville FL

Salesperson (FL: 3378401)

9 years experience

REALTOR® 2 Active Listings Serves Duval County, FL
View on Realtor.com

Contact Information

Brokerage
Berkshire Hathaway Homeservices Florida Network Realty - Metro Jacksonville

Office Website
Office Address
3627 St Johns Ave
Jacksonville, FL  32205
(Duval County)
Office Phone
904-388-5005
Office Fax
904-388-5566
Mobile
904-903-8993
Email
hflaherty2@aol.com

Service Areas

Jacksonville: FL Neptune Beach: FL Lakeside: FL Oakleaf Plantation: FL Fleming Island: FL Orange Park: FL

About Heather Cosgrove

Heather is a seasoned professional at Berkshire Hathaway HomeServices Florida Network Realty, bringing over 20 years of expertise in human resources management and relocation services. Growing up as the daughter of a U.S. Navy pilot, she has experienced the complexities of frequent relocations firsthand. This background equips her with a profound understanding of the challenges faced by individuals and families navigating the home-buying process in new and sometimes unfamiliar environments.

Having lived in diverse locations across the United States—from Virginia to California and now the picturesque First Coast—Heather appreciates both the excitement and the potential anxieties associated with moving. Her journey inspired her to become a Realtor, as she is passionate about leveraging her personal experiences to assist others in finding not just a house, but a true home where they can thrive for years.

Heather holds a bachelor's degree from Virginia Tech and a master's degree from Marymount University. Before transitioning to real estate, she served as a human resources director for prominent companies in the mortgage finance, communications, consulting, and engineering sectors. Her extensive background in helping individuals relocate for new opportunities enhances her ability to guide clients through their own transitions.

In addition to her professional endeavors, Heather is dedicated to community service. She serves as the Workforce Readiness Director for the Jacksonville Society for Human Resource Management and is an active member of the Jacksonville Chamber of Commerce. Her commitment to supporting others extends to her volunteer work with Employer Support of the Guard and Reserve (ESGR) and Operation New Uniform.

Duval County, FL Real Estate Market Analysis (Single Family Homes)

$461,669
Avg. Listing Price
From Heather's portfolio
3.5 / 2.4
Avg. Beds/Baths
Typical property size
1,886 sf
Avg. Square Footage
Interior living space
4110
Active Listings
Current inventory

If you need to reach working real estate agents in Duval County, Florida, this list was built for you. Mortgage lenders prospecting for referral partners, title companies expanding their closing network, PropTech platforms pitching new tools, insurance agents selling E&O or home warranty products, continuing education providers, and recruiters targeting experienced agents all rely on targeted agent data to fill their pipelines. Buying a generic statewide list and hoping the right people open it is a losing strategy when you can go directly to the agents working in your market.

This list gives you direct access to {{AGENT_COUNT}} actively licensed real estate agents in Duval County, including {{CELL_COUNT}} with verified cell phone numbers. Whether you are launching a cold email sequence, building a direct mail campaign, or handing warm numbers to your sales team, having clean, verified contact data at the county level eliminates the guesswork and puts your offer in front of the right professionals immediately.

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

Data quality is the only thing that separates a productive campaign from wasted ad spend. Every record in this list is sourced directly from the Florida state real estate licensing board, meaning you are starting with agents who are confirmed active and legally authorized to practice. New emails are added weekly, the full list is cleaned monthly, and the entire database is refreshed bi-annually. The result is a 96% deliverability guarantee that cheap data scrapers simply cannot match.

Dr Bill has been selling verified agent lists since 2005 with over 31,000 lists sold to date. The data is available at the state, county, city, and zip code level, and no other vendor offers zip code level segmentation within Duval County. That granularity matters when your territory, franchise area, or service radius does not follow county lines.

How to Use This Duval County Agent List

The most immediate use is cold email outreach. Load the list directly into platforms built for high-volume prospecting, including cold-email tools like Zap Contact at zapcontact.com, and launch a sequenced campaign within hours of purchase. The verified emails protect your sender reputation and keep your messages landing in inboxes rather than spam folders.

Beyond email, the same data supports direct mail drops, phone outreach using the included cell numbers, and LinkedIn audience matching for paid campaigns. You can also segment the list by license type to separate designated brokers from sales agents, which lets you tailor your message to decision-makers versus individual producers depending on what you are selling.

Why Duval County, Florida Agent Data Matters

Duval County is home to Jacksonville and its surrounding communities including Jacksonville Beach, Atlantic Beach, Neptune Beach, and Baldwin. The consolidated city-county structure means the agent population is large, diverse in specialization, and spread across distinct neighborhoods and price corridors. When you buy Duval County real estate agent email list data at this level of specificity, you stop paying to reach agents in Tampa or Orlando who will never send you a referral or buy your product.

With {{AGENT_COUNT}} active agents in the county, Duval represents a concentrated, high-value audience for any business that depends on agent relationships. Local targeting consistently outperforms statewide blasts because your message is relevant, your offer is actionable, and the agents receiving it actually operate in the market you serve.

Current Property Listings

As of 6/27/2026, Heather Cosgrove has 2 properties for sale in Jacksonville and surrounding areas.

$60,000

Listed 2025-10-21

9168 Jackson Ave
Jacksonville, FL  32208

Beds:
Baths:
Sq Ft: 0
Lot: 18,731 sf
Land Map
View Full Details

$475,000

Listed 2026-06-17

2667 Post St
Jacksonville, FL  32204

Beds: 3.0
Baths: 2.0
Sq Ft: 1,523
Lot: 6,534 sf
Single Family Map
View Full Details

Current Property Rentals

Heather Cosgrove currently has no rental properties available in Jacksonville and surrounding areas. Check back later.