Sellers, Buyers, Clients, Customers ... Blue Dolphin Realty, LLC is ready, willing, and very able to help you with your needs!

I am Johnna Maertz, Partner and Broker at Blue Dolphin Realty, LLC. I have been in the workforce since the age of 16. I worked the oil and gas industry in the late 80's and early 90's preparing auto-cad drawings and designing oil and gas skids for manufacturing. When this industry headed on a downhill slope, I partnered in a medical supply business in 1992. Thus was the beginning of my self-employment ventures. I then moved into real estate as a sales associate in the early 2000s and became a Real Estate Broker soon after. I have garnered valuable experience over the years and am a hardworking person with a commitment to making clients and customers happy. I want to earn your trust and be YOUR Realtor. The real estate market and laws are CONTINUOUSLY changing and I keep up with these changes by completing many hours of continuing education courses. I have closed deals in as little as 2 weeks and have helped people search for property for longer than 2 years before finding a property. I do this to make sure the people I am helping are not just settling and find the property they truly desire. I have listed and sold properties for as little as 4500.00 and have listed and sold multi-million dollar properties, so know I will be there, no matter the dollar amount. I believe that God will get us where we need to go in His own sweet time. I dress casually, handle your transactions professionally, and treat my clients and customers ethically. BLUE DOLPHIN REALTY, LLC is located at my home office. Please call or text for an appointment. 979-732-0619


Membership

Houston Association of REALTORS®

Recommendations

7 recommendation(s)
JG
Johnna Maertz, recommended by Jennifer Galindo, worked together on a real estate transaction on Sep. 19th, 2025.

“I have worked with Johnna several times She is the best realtor I have ever ... “I have worked with Johnna several times. She is the best realtor I have ever worked with. She is patient, kind, hardworking and honest person. She has your best interest over making a sale. Johnna truly cares about her clients and is always available. No one works harder than her!" Read more

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Client Experience Rating

Agent Ratings are based on feedback from clients who have worked directly with the agent, reflecting their personal experience and satisfaction.

Overall Rating
148 Surveys
4.98 / 5
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4.97 / 5
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Competency
4.97 / 5
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Market Knowledge
4.99 / 5
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Communication
4.99 / 5
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Experience

Listings by Johnna Maertz & Prior Sales

1061 Dee Allen Rd

Columbus, TX 78934
$235K
Under Contract - PS
3 beds
2 baths
1,260 sqft.

1085 Reeves Rd

Garwood, TX 77442
$489K
Active
2 beds
2 baths
1,168 sqft.

678 Colorado St

Glidden, TX 78943
$405K
Active
4 beds
3 baths
2,200 sqft.
See more for sale houses →
 

1138 Fannin St

Columbus, TX 78934
$3K
Active
2 beds
1 bath
1,056 sqft.
 
Sold: 02/12/2026
Represented: Seller

Parcel 6 Lobo Ln

Columbus, TX 78934
$285K - $325K
Sold
11.000 acres
Sold: 02/04/2026
Represented: Seller

0 Clipson Rd

Eagle Lake, TX 77434
$160K - $185K
Sold
9.000 acres
Sold: 01/23/2026
Represented: Buyer

604 S Mechanic St

Weimar, TX 78962
$120K - $140K
Sold
3 beds
1 bath
1,382 sqft.
See more recently sold houses →
Rented: 04/01/2026
Represented: Buyer

1320 Montezuma St

Columbus, TX 78934
$0 - $10K
Rented
3 beds
1 bath
2,052 sqft.
Rented: 02/20/2026
Represented: Seller

1126 Jackson St

Columbus, TX 78934
$0 - $10K
Rented
2 beds
2 baths
1,422 sqft.
Rented: 02/06/2025
Represented: Both

809 Milam St

Columbus, TX 78934
$0 - $10K
Rented
2 beds
1 bath
1,750 sqft.
See more recently rented houses →
 

Neighborhoods

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Johnna Maertz with Blue Dolphin Realty, LLC. is a real estate professional in TX. View Johnna Maertz's bio, Listings by Johnna Maertz, Neighborhoods where Johnna Maertz is active and more. You can contact Johnna Maertz by clicking the button below.

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Office location

Blue Dolphin Realty, LLC.

102 South River Dr, Columbus, TX 78934
Blue Dolphin Realty, LLC., is a Texas real estate firm, located at 102 South River Dr, Columbus, TX 78934. Blue Dolphin Realty, LLC. 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 Blue Dolphin Realty, LLC. 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 Blue Dolphin Realty, LLC. Agent Roster.

Please visit Blue Dolphin Realty, LLC. website, where you will find useful information on how to choose the right property, make an offer, negotiate, finance, pick the feasible mortgage rates, move, as well as get hold of all the details needed in making an informed real estate decision in today's market.

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