Michael Greiner

Michael Greiner
Real Estate Agent (Salesperson)
Houston TX

Salesperson (TX: 0588268)

18 years experience

REALTOR® 61 Active Listings Serves Harris County, TX
View on Realtor.com

Contact Information

Brokerage
My Castle Realty
Office Address
10560 Nw Freeway
Houston, TX  77092
(Harris County)
Office Phone
713-683-0054
Office Fax
Mobile
713-683-0054
Email
michael@mycastlerealty.com

Service Areas

Houston: TX

Harris County, TX Real Estate Market Analysis (Single Family Homes)

$487,691
Avg. Listing Price
From Michael's portfolio
3.6 / 3.0
Avg. Beds/Baths
Typical property size
2,400 sf
Avg. Square Footage
Interior living space
18698
Active Listings
Current inventory

If you need to reach working real estate agents in the Houston metro, this list was built for you. Mortgage lenders, title companies, PropTech platforms, insurance providers, continuing education companies, and recruiters all buy Harris County real estate agent email list data to get in front of licensed professionals who are actively closing deals and consistently looking for tools, services, and partnerships that help them do it better.

Harris County is one of the most competitive real estate markets in the country, and the professionals operating inside it are worth reaching directly. Whether you are pitching E&O insurance, a new transaction management platform, a CE course, or a recruitment opportunity, this list gives you a direct line to {{AGENT_COUNT}} verified, actively licensed agents — including {{CELL_COUNT}} with cell phone numbers on file for SMS or direct dial campaigns.

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

Every record in this database is sourced directly from the Texas Real Estate Commission, the official state licensing authority — not scraped from third-party directories or aggregated from stale web data. Emails are cleaned monthly, new contacts are added weekly, and the entire database is fully refreshed twice a year. The result is a 96% deliverability guarantee that cheap list vendors simply cannot match, because they are not doing the maintenance work required to back that number up.

Dr Bill has been selling real estate agent email lists since 2005 with over 31,000 lists sold across the country. That track record means the data standards, the update cycles, and the deliverability guarantee are proven at scale. You are not gambling on a CSV file from an unknown source — you are buying from the most experienced vendor in this space.

How to Use This Harris County Agent List

The most common use case is cold email outreach through platforms like Zap Contact (zapcontact.com), which are purpose-built to send compliant, high-volume prospecting campaigns to professional audiences. The list is formatted to load directly into cold-email platforms so you can be sending within hours of purchase. You can also use it for direct mail, LinkedIn audience matching, or live phone outreach using the included cell numbers.

Smart buyers segment the data before they launch. Separating broker licensees from sales agents, for example, lets you tailor your message — a recruitment pitch lands differently with a broker than it does with a first-year agent. The list supports that kind of targeting out of the box.

Why Harris County, Texas Agent Data Matters

Harris County encompasses Houston and dozens of surrounding cities including Pasadena, Baytown, Humble, Katy, and Sugar Land. With {{AGENT_COUNT}} actively licensed agents concentrated in a single county, the density of opportunity here is unusually high. No other vendor offers zip-code-level segmentation within Harris County — meaning you can target agents in a specific neighborhood or corridor rather than blasting the entire metro.

Statewide Texas lists are broad by necessity. A Harris County-specific list lets you focus your budget, improve response rates, and speak to the local context your prospects actually care about. Precision targeting at the county and zip level is the difference between a campaign that converts and one that gets ignored.

Current Property Listings

As of 6/27/2026, Michael Greiner has 61 properties for sale in Houston and surrounding areas. These are the top 10 listings.

$178,684

Listed 2026-03-02

3222 Mariana Ave
Midland, TX  79701

Beds: 3.0
Baths: 1.0
Sq Ft: 1,270
Lot: 7,579 sf
Single Family Map
View Full Details

$199,000

Listed 2026-01-07

10151 Pless Rd
Cat Spring, TX  78933

Beds:
Baths:
Sq Ft: 0
Lot: 87,120 sf
Land Map
View Full Details

$664,190

Listed 2026-03-26

10152 FM 949
Cat Spring, TX  78933

Beds: 3.0
Baths: 2.5
Sq Ft: 2,330
Lot: 80,586 sf
Single Family Map
View Full Details

$160,000

Listed 2026-01-20

25610 Spotted Sandpiper Dr
Galveston, TX  77554

Beds:
Baths:
Sq Ft: 0
Lot: 7,118 sf
Land Map
View Full Details

$825,000

Listed 2026-04-11

23022 Chiquita St
Galveston, TX  77554

Beds:
Baths:
Sq Ft: 0
Lot: 9,831 sf
Land Map
View Full Details

$634,750

Listed 2026-02-06

4221 Grassy Pointe Dr Unit 301
Galveston, TX  77554

Beds: 3.0
Baths: 3.0
Sq Ft: 1,717
Condo Map
View Full Details

$164,000

Listed 2026-03-31

613 19th Ave N
Texas City, TX  77590

Beds: 3.0
Baths: 1.0
Sq Ft: 1,151
Lot: 7,701 sf
Single Family Map
View Full Details

$159,900

Listed 2026-02-28

2111 Briar Ln
La Marque, TX  77568

Beds: 3.0
Baths: 1.0
Sq Ft: 1,068
Lot: 7,771 sf
Single Family Map
View Full Details

$315,000

Listed 2026-05-27

8530 E Highlands Xing
Highlands, TX  77562

Beds: 4.0
Baths: 2.5
Sq Ft: 2,573
Lot: 6,665 sf
Single Family Map
View Full Details

$336,000

Listed 2026-02-17

415 Kempner St Unit 3D
Galveston, TX  77550

Beds: 1.0
Baths: 1.0
Sq Ft: 942
Condo Map
View Full Details

Current Property Rentals

As of 6/27/2026, Michael Greiner has the following rental properties available in Houston and surrounding areas. These are the top 10 listings.

$1,400

Listed 2026-06-10

22195 E Martin Dr Unit 4A
Porter, TX  77365

Beds: 3.0
Baths: 1.5
Sq Ft: 1,000
Lot: 65,776 sf
Multi Family Map
View Full Details