Maria Diaz Sierra
Keller Williams Southlake
Mike Lewis
Raised in a family of architects, Maria was empowered with a deep knowledge of real estate and development while growing up. By the time she moved to the DFW Metroplex, she had already worked as a real estate agent for over a decade. Now she brings her wealth of experience to the area and helps deliver the best result possible for her clients. With her happy, positive attitude nicely complementing her sharp customer service and negotiating skills, Maria is a natural at understanding her client’s unique needs and going after them with great focus, dedication and tenacity. Her No. 1 priority is finding the property that best suits her client’s needs, and she doesn’t rest until she’s helped them find the house of their dreams. No matter what type of home you’re searching for, you can trust her to take you in the right direction.
"I offer a personal and professional approach to buying or selling your home."
Market Authority
- Licensed in real estate for 18 years across New York and Texas
- Former attorney with extensive experience in negotiation and client advocacy
Honors & Accolades
- Top 1.5 % agents nationwide
- Southlake Style Readers' Choice Winner in 2025 and 2026
- Ranked top producer in D Magazine, Fort Worth Magazine, and North Fort Worth Real Producers
