Guilherme Della Coletta Sillman
Real Estate Agent (Salesperson)
Altamonte Springs FL

Salesperson (FL: 3554651)

4 years experience

REALTOR® 3 Active Listings Serves Seminole County, FL
View on Realtor.com

Contact Information

Brokerage
Countrywide Realty Partners L
Office Address
385 Douglas Ave Ste 3000
Altamonte Springs, FL  32714
(Seminole County)
Office Phone
407-401-3739
Office Fax
Mobile
512-596-6558
Email
guisillman@gmail.com
Website

Service Areas

Lost Creek: TX West Lake Hills: TX Austin: TX Rollingwood: TX

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

$637,787
Avg. Listing Price
From Guilherme's portfolio
3.8 / 2.8
Avg. Beds/Baths
Typical property size
2,395 sf
Avg. Square Footage
Interior living space
1290
Active Listings
Current inventory

When you need to reach working real estate agents in Seminole County, Florida, this list puts you directly in front of them. Mortgage lenders use it to introduce loan programs, title companies use it to pitch closing services, and PropTech companies use it to demo software to agents who are actively writing deals. Insurance providers, continuing education companies, and real estate recruiters all depend on this same list to generate consistent pipeline without burning time on manual prospecting.

This is not a consumer list or a homeowner list — every record represents a licensed, practicing real estate agent with a verified email address. With {{AGENT_COUNT}} actively licensed agents in Seminole County and {{CELL_COUNT}} records that include direct cell phone numbers, you have the reach to run a serious B2B campaign the moment your order is complete.

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

Dr Bill has been building and selling real estate agent data since 2005 with over 31,000 lists sold — this is not a side project. Every email address in this list is sourced directly from Florida's state licensing board, cross-verified, cleaned monthly, and completely refreshed bi-annually so you are never mailing to agents who have left the business. A 96% deliverability guarantee backs every order, which is a standard that cheap scraped lists from discount data vendors simply cannot match.

Where competitors sell statewide dumps with no granularity, this data is available at the state, county, city, and zip code level. No other vendor sells Seminole County agent data segmented by zip code within the county — that precision alone separates this list from anything else on the market. New emails are added weekly, so the list you receive reflects the current agent population, not a snapshot from six months ago.

How to Use This Seminole County Agent List

The most immediate use is cold email outreach through a dedicated sending platform. Tools built for cold email like Zap Contact (zapcontact.com) are designed to handle this kind of B2B prospecting cleanly, with sequencing, tracking, and deliverability controls that standard ESPs do not offer. You can also upload the list for direct mail campaigns, use the cell phone numbers for SMS or voice outreach, and match records to LinkedIn for targeted ad audiences that reach the same agents across multiple channels.

Segmenting the list by broker versus sales agent lets you tailor your message — brokers respond to business-level offers while sales agents respond to tools and resources that help them close more deals. That flexibility is built into the data.

Why Seminole County, Florida Agent Data Matters

Seminole County covers a concentrated, high-activity market that includes Sanford, Altamonte Springs, Casselberry, Lake Mary, Longwood, Oviedo, and Winter Springs. When you buy Seminole County real estate agent email list data at this level of detail, you are targeting a defined professional community — not diluting your spend across an entire state where most recipients have no relevance to your offer.

With {{AGENT_COUNT}} active agents operating across these cities, the opportunity to build real relationships and consistent referral volume is significant. A statewide Florida blast puts you in front of agents in markets you may never serve. A Seminole County list puts you in front of the specific professionals who close deals where your business actually operates.

Current Property Listings

As of 6/27/2026, Guilherme Della Coletta Sillman has 3 properties for sale in Altamonte Springs and surrounding areas.

$240,000

Listed 2026-03-05

47 Fisher Lane Trce
Ocala, FL  34472

Beds: 3.0
Baths: 2.0
Sq Ft: 1,367
Lot: 11,326 sf
Single Family Map
View Full Details

$299,900

Listed 2026-02-11

6788 SW 149th Lane Rd
Ocala, FL  34473

Beds: 4.0
Baths: 2.0
Sq Ft: 1,774
Lot: 10,019 sf
Single Family Map
View Full Details

$299,900

Listed 2026-02-11

14827 SW 21st Ter
Ocala, FL  34473

Beds: 4.0
Baths: 2.0
Sq Ft: 1,774
Lot: 10,019 sf
Single Family Map
View Full Details

Current Property Rentals

Guilherme Della Coletta Sillman currently has no rental properties available in Altamonte Springs and surrounding areas. Check back later.