About Us

AT Texas Properties, dba Lone Star Maintenance Operations & Services, is a Hispanic, Family-owned, Veteran-led MOS company committed to more than just real estate investing. We are your trusted partner in buying, selling, and maintaining residential and commercial properties.
Your Partner in Real Estate Success
Our mission extends beyond renovations and make-ready transactions. We ensure our clients make informed decisions at every step, helping keep their businesses running smoothly through accurate bid estimation, thorough inspections, quality renovations, and timely supply deliveries.
With deep expertise in construction, pre-owned properties, and commercial real estate, our team embodies commitment, professionalism, timeliness, resourcefulness, and exceptional client service.
“With the support of a U.S. Marine Corps Veteran, Nick brings strategic military connections that strengthen our mission to empower local veteran contractors who share a common purpose. By prioritizing the Golden Rule—treating others as we wish to be treated—we ensure that every contract progresses in a positive, ethical direction. This approach fosters a strong referral-based network that fuels the local economy and supports sustainable community growth.”
HERE YOU ARE FAMILY!
At AT Texas Properties, you can trust us to guide you toward success in your real estate and commercial property ventures.
Building Dreams, One Property at a Time
Meet our team
Meet the dedicated and experienced team at AT Texas Properties, committed to guiding you towards real estate success with expertise and personalized service.

Tiffany Gaitan
Professional Summary
Tiffany Gaitan is an experienced real estate and financial services professional with a strong foundation in customer service, sales, training, and client relationship management. With over two decades of experience spanning real estate sales, mortgage origination, banking, financial consulting, and team mentoring, she has developed a well-rounded skill set focused on creative problem-solving, bilingual client support, and strategic growth. My experience in Real Estate and Construction have built our foundation for success:
These lessons and collaborations were instrumental in the successful launch of ATTX Properties. Tiffany continues establishing strategic partnerships with seasoned professionals in general contracting and commercial property maintenance.
Tiffany has held active licenses in Real Estate both Residential and Commercial (Texas), Insurance (Life & Health), and Financial services (FINRA Series 6 & 63), NNLS (Mortgage). Her background includes work with top firms like JPMorgan Chase, DR Horton Homes, and Allstate, Citigroup, as well as extensive experience mentoring new agents and educating clients on complex financial products and real estate solutions.
Core Competencies
- Real Estate Sales (Residential, Seller Financing, Investment)
- Mortgage Origination & Private Lending
- Financial Analysis & Insurance Solutions
- Bilingual Communication (English/Spanish)
- Training, Mentoring & Public Presentations
- CRM, MLS, Financial & Credit Platforms, Builder Software
- Customer-Centric Sales Strategy
- Team Collaboration & Career Development

Armando Gaitan
Professional Summary
Armando Gaitan is a highly skilled field operations and oil & gas professional with over 20 years of experience across well treatment, field supervision, demolition, and construction services. Armando has led diverse teams and managed high-stakes projects in drilling, frac operations, chemical treatment, and commercial demolition. Armando excels in coordinating contracts, managing crews, ensuring safety compliance, and adapting to dynamic field conditions.
His background includes supervisory roles with major industry players such as Shale Energy, Baker Hughes, Weatherford International, Canco Restoration, and Erfurt Blasting, and hands-on experience with estimating, job site logistics, and technical equipment operation. He is also experienced in cross-functional collaboration with company men, insurance adjusters, tradespeople, and environmental testers.
Core Competencies
- Field Operations Supervision
- Hydraulic Fracturing & Well Treatment
- Estimating & Contract Coordination
- Chemical Mixing & Pipeline Flow Management
- Held CDL Class A – HazMat & Tanker Certified
- Safety Compliance (MSHA, OSHA)
- Crew Leadership & Training
- Demolition & Directional Drilling
- Equipment Operation & Maintenance
- Disaster Recovery & Environmental Testing

Nick Garces
Professional Summary
I’m Marco Nickolas Garces, Member ATTX Properties, a proud 40-year-old U.S. Marine Combat Veteran living in San Antonio, Texas. As a devoted father of two teenage boys and the proud dad of two energetic dogs, family is at the heart of everything I do.
Having served my country, I am passionate about helping my fellow Veterans navigate the complexities of the VA benefits system. My mission is to assist Veterans in securing the benefits they deserve, ensuring they achieve higher quality of life and stay on track for their well-being and success.
Outside of my professional pursuits, I cherish spending time with my family. Whether it’s hosting cookouts, enjoying boating adventures, or casting a line for a relaxing day of fishing, I find joy in creating lasting memories with my loved ones.
I’m also excited to be working alongside my sister and brother-in-law on a business initiative aimed at giving back to our community. Our goal is to further support Veterans and enhance the lives of our neighbors in San Antonio while spreading the workload amongst other Veterans.
Thank you for visiting my site. I look forward to connecting with you and continuing our shared commitment to uplift and empower our community!
Background in Industry
REAL ESTATE – CONSTRUCTION – DEVELOPMENT – MAINTENENCE – OPERATIONS – SERVICES
About AT Texas Properties
With over 17 years of experience in the real estate industry, AT Texas Properties was founded from a deep passion for helping clients succeed in real estate investing. Our journey began with a strong focus on seamless construction and has since evolved into a full-service operation rooted in trust, knowledge, and personal connections.
We are committed to delivering expert guidance, resourceful solutions, and genuine, personalized service to every client we serve. Our proven track record of strong client relationships reflects the trust we’ve built over the years—trust grounded in integrity and a shared goal of long-term success.
What started as a husband-and-wife team, (Tiffany and Armando), has grown with the addition of Nick Garces, a proud U.S. Marine Corps Veteran and brother, who plays a key role in strengthening our ties to the military community and our joint bases in the San Antonio network. Nick’s insight and leadership help us stay connected to the values and needs of fellow veterans—those we are honored to serve and support.
At AT Texas Properties, we’re more than just construction professionals. We’re a mission-driven team dedicated to helping veterans and local clients alike turn their goals into reality—one property at a time.
FAMILY OWNED: USMC VET member / FEMALE HISPANIC memer / CONSTRUCTION member / *CONTRACTORS*
Experience excellence in real estate investing
