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Helping manage over 200 coastal properties, Bennett helps clients make strategic real estate decisions backed by firsthand market experience and local Galveston expertise.

Bennett Mainini is the Owner of Shoreline Realty Group, a REALTOR® with Keller Williams Horizons, and the Sales & Marketing Director of StayBeachBox.com, the largest locally owned vacation rental management company on the Texas coast. His unique combination of real estate sales and professional vacation rental management gives clients an advantage few agents can offer—helping them understand not only a property's market value today, but also its long-term investment potential.

Bennett's expertise is backed by an extensive educational foundation from the University of Houston, including degrees in Real Estate Finance and Entrepreneurship from the nation's top-ranked entrepreneurship program. This unique background equips him with the financial acumen to evaluate opportunities, the business insight to identify long-term value, and the negotiation skills to maximize results for his clients. As a short-term rental investor himself, the guidance he provides is rooted in firsthand experience—not theory.

Bennett represents buyers and sellers throughout Galveston, Jamaica Beach, Crystal Beach, Surfside Beach, Kemah, and the surrounding Texas coast. Through his leadership role at StayBeachBox, he has direct insight into the vacation rental market, including booking trends, revenue potential, guest preferences, and the amenities that consistently deliver the strongest returns. Whether clients are purchasing a vacation home, acquiring an investment property, or selling a current residence or income-producing rental, they benefit from market intelligence that extends well beyond traditional real estate sales.

Known for straightforward communication, strategic negotiation, and a client-first approach, Bennett is committed to making every transaction as seamless and informed as possible. Whether you're purchasing your first coastal property, selling a longtime investment, or expanding your real estate portfolio, he provides the local expertise and financial insight to help you make confident decisions every step of the way.


Membership:
Houston Association of REALTORS®

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Listings by Bennett Mainini & Prior Sales

6102 Seawall Blvd #213

Galveston, TX 77551
$125K
Active
1 bed
1 bath
462 sqft.

1021 N Sage Rd

Crystal Beach, TX 77650
$245K
Active
1 bed
1 bath
576 sqft.
Sold: 09/01/2026
Represented: Buyer

6102 Seawall Blvd #323

Galveston, TX 77551
$105K - $120K
Sold
1 bed
1 bath
462 sqft.
Sold: 08/31/2026
Represented: Seller

6102 Seawall Blvd #362

Galveston, TX 77551
$105K - $120K
Sold
1 bed
1 bath
462 sqft.
Sold: 07/21/2026
Represented: Buyer

105 Pompano Ave

Galveston, TX 77550
$250K - $285K
Sold
3 beds
2 baths
1,316 sqft.
See more recently sold houses →

7210 Yucca Dr

Galveston, TX 77551
$328K
Under Contract - P
4 beds
2 baths
1,756 sqft.

1513 40th St

Galveston, TX 77550
$550K
Active
4 beds
3 baths
2,548 sqft.

25114 Sausalito Dr

Galveston, TX 77554
$610K
Active
4 beds
2 baths
1,935 sqft.
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Keller Williams Horizons Office Location

4920 Seawall Blvd, Ste C, Galveston, TX 77550
Keller Williams Horizons, is a Texas real estate firm, located at 4920 Seawall Blvd, Ste C, Galveston, TX 77550. Keller Williams Horizons provides a wide range of real estate services. Consumers continue to find value in having a real estate professional help them through the home buying and selling process. The range of services the real estate professionals provide is proving ever more valuable in real estate transactions (financing twists and sales contract intricacies). Please view Keller Williams Horizons current listings, or sold listings.

Buyers and sellers give reviews to the real estate agents for the level of expertise and professionalism they bring to the real estate transaction. View Keller Williams Horizons Agent Roster.Keller Williams Horizons has multi-lingual agents: Spanish, Croatian, English. Keller Williams Horizons has multi-cultural agents, including agents from Argentina, Brazil, Chile, Colombia, Costa Rica, etc., see all cultures.

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