Gorrondona & Associates, Inc.

Contact: Jeanine Thibodeaux
Phone: (512) 719-9933
Email: jthibodeau@ga-inc.net
Address: https://ga-inc.net/contact/
Website: www.ga-inc.net


Professional services:

Gorrondona & Associates, Inc. (G&AI) has more than 31 years of experience managing complex projects across the state. G&AI is a Texas Corporation with offices in Dallas, Fort Worth, Houston, Austin, San Antonio, and Lubbock providing full service professional land surveying, geographic information systems (GIS), Mobile LiDAR, aerial mapping (photogrammetry/LiDAR), unmanned aerial system mapping (UAS), and terrestrial scanning.

Established in 1990, the company maintains a staff of nearly 80 people: including 10 registered professional land surveyors, two licensed professional engineers, two certified photogrammetrists, a certified mapping scientist – LiDAR, a geographic information systems professional (GISP), and 20 survey field crews.

A successful project is based on the quality of the survey. G&AI understands this fundamental requirement and it is on this tenet that the firm was founded. With a staff of 12 Registered Professional Land Surveyors who manage 20 field crews, G&AI maintains a staff of over 40 survey personnel. The knowledge base of G&AI’s registered surveyors underscores the seamless integration of the survey and mapping component with the engineering of each project performed.

G&AI also provides a wide variety of aerial mapping and related services. This requires acquisition of precision aerial photography and light detection and ranging (LiDAR) data for collecting both map data and imagery used for engineering-design and infrastructure-related applications. G&AI develops highly accurate design-grade map data for high-resolution color imagery.

Areas of expertise:

• Land Surveying

• Photogrammetric Mapping

• GIS Services

Client list:

Our client base includes state and regional transportation agencies, governmental entities, municipalities and counties, consultants, telecommunications, rail, airports, local water districts, state water boards, K-12 and higher education, oil and gas industry, petroleum chemical plants, private development, and power companies.


G&AI is certified by the North Central Texas Regional Certification Agency as a Minority Business Enterprise (MBE), the South Central Texas Regional Certification Agency as a Hispanic American Business Enterprise (HABE), Minority Business Enterprise (MBE), and a Small Business Enterprise (SBE), Texas Department of Transportation Small Business Enterprise (SBE), City of Houston Minority Business Enterprise (MBE), and the State of Texas as a Historically Underutilized Business (HUB).

Our staff is well credentialed in the area of surveying and mapping, including:
14.2.1 Geotechnical Testing
15.1.1 Right of Way Surveys
15.3.1 Aerial Photogrammetry
15.3.2 Terrestrial Photogrammetry
15.3.3 Terrestrial LIDAR
15.3.4 Mobile and Airborne LiDAR
15.3.5 Horizontal and Vertical Control

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Jackson Real Estate Professionals

Contact: Stacy W. Jackson, MAI, ARA
Phone: (903) 820-8499
Email: JacksonRealEstatePros@gmail.com
Address: PO Box 498, Winnsboro, TX 75494


Professional services:

For over 20 years, Stacy has served the land valuation and stewardship needs of clients across Texas and the western US. He can provide the solution you seek to your land valuation concern. He is knowledgeable and experienced in wetlands, conservation easements, ranches, farms, rural acreage, and otherwise complex agricultural or rural valuation matters. He has earned the MAI designation from the Appraisal Institute and the ARA (Accredited Rural Appraiser) designation from the American Society of Farm Managers and Rural Appraisers (ASFMRA).

Since entering the real estate profession, Stacy has specialized in serving owners and prospective owners of ranches, farms, environmentally sensitive properties, recreational real estate, and rural acreage. He meets the needs of astute real estate clients with a core focus and mission to promote prudent land stewardship. In maintaining an extensive network of industry
professionals, Stacy stays abreast of constantly evolving markets and can provide a unique perspective and innovative solution to your real estate inquiry.

Stacy has earned the MAI designation from the Appraisal Institute and the ARA (Accredited Rural Appraiser) designation from the American Society of Farm Managers and Rural Appraisers (ASFMRA).

Areas of expertise:

We have valuation expertise in the following areas:

• Conservation Easements
• Wetlands Reserve Program (WRP)
• IRS Charitable Contributions
• UASFLA “Yellow Book” Appraisals
• Partial Interests
• Litigation Support, Subject Matter and Expert Witness Testimony
• Eminent Domain and Condemnation

Client list:

Client base ranges from private individual parties or counsel to federal agencies. References may be provided upon request.


• MAI Designation from the Appraisal Institute
• ARA (Accredited Rural Appraiser) from the ASFMRA
• Texas State Certified General Appraiser
• Oklahoma State Certified General Appraiser
• Colorado State Certified General Appraiser
• Texas State Salesperson License

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Medina Valley Surveys

Contact: Stephanie Prosser

Phone: (830) 538-6427

E-Mail: steph.prosser@gmail.com

Website: www.medinavalleysurveys.com

Professional Services

MVS offers our services statewide. We specialize in:

• Land Surveying
• Land Boundary Consultation
• Document Review and Easement Boundary Verification

Areas of Expertise

• Boundary surveys
• Patent Retracement
• Vacancy and Excess Investigation
• Expert Witness Services
• Topographic Surveys
• Flood Elevation Certificates
• Discrepancy Resolution
• Geodetic Surveying
• Estate Partitions

Primary Customers

• Private Landowners

• Land Trusts

• Developers

Medina Valley Surveys President Paul T. Carey LSLS, RPLS Credentials:

• Licensed State Land Surveyor –Coastal and gradient boundary surveys, retrace original patent lines, evaluate for deficiency, vacancy or excess in original patents and file records with the Texas General Land Office

• Registered Professional Land Surveyor – Licensed and registered for 30 years and performed over 10,000 boundary surveys on the ground

• Texas Society of Professional Surveyors – Past President, Former Director, Former TSFI Chairman, Current Education Committee Member

• Texas Society of Professional Surveyors Course Developer and Presenter

• TBPLS firm #100002-00

• TBPLS registration #4454

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Jeffries Appraisal Services

Contact: James J. Jeffries

Phone: (512) 930-5559

Mobile: (512) 560-6844

E-Mail: jim@jeffriesappraisalservices.com

Website: www.jeffriesappraisals.com/


Professional services:

For the past 25 years, Jim has specialized in valuing rural and ecologically significant and sensitive properties with integrity.  Jim has extensive valuation experience with conservation easements, wetlands, ranches and rural acreage, and endangered species.  Jim has been a Real Estate Appraiser for over 35 years and has earned the designations of (ARA) Accredited Rural Appraiser and (MAI) Member of the Appraiser Institute.


Areas of expertise:

Valuation of ecologically significant and other rural properties


Extensive Valuation Experience with:

Conservation Easements

Other Partial Interest Value Questions


Endangered Species

Ranches & Rural Acreage


Client list:

U.S. Fish & Wildlife Service; The Dow Chemical Company; Conoco Inc.; Phillips Petroleum Company; National Fish & Wildlife Foundation; The Nature Conservancy of Texas; The Conservation Fund; Trust for Public Lands; Texas Parks & Wildlife Department; Texas National Guard Armory Board; Texas A&M University; Lower Colorado River Authority; City of San Antonio, West Side Calhoun County Navigation District; South Texas Electric Cooperative; Jackson Electric Cooperative; and various banks; savings and loans; public utility companies; other governmental and quasi-governmental districts, boards, or commissions; private corporations; attorneys; and individuals.


Primary Customers:

The Nature Conservancy, The Conservation Fund, Trust for Public Lands, U.S. Fish and Wildlife Service, Texas Parks and Wildlife Department, and private individuals for donation of conservation easements (ultimate user = Internal Revenue Service)



MAI – Member of the Appraisal Institute

ARA – Accredited Rural Appraiser, American Society of Farm Managers and Rural Appraisers.

Texas State Certified General Appraiser #1320825

Texas Real Estate Broker License #320009

Qualified instructor for the American Society of Farm Managers and Rural Appraisers and approved to teach the Conservation Easement Appraisal Course and the Uniform Appraisal Standards for Federal Land Acquisition Course.

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