Who We Are

Contact Jeff: jeff@12realty.com, 281-814-0665


Co-Owner/Broker: Jeff Mazzolini started TWELVE REALTY to pursue his passion of helping others through real estate. Jeff has spent time in multiple facets of the real estate industry including investment real estate, hard money lending (Texas Investor Financing) and residential and commercial brokerage. Jeff studied Sport Management at Texas A&M and earned his Bachelor of Science degree in 2005. He is Co-Founder of the Brazos Real Estate Investor's Club (BRIC), a partner in HomeVestors® - RockWater Investments, LP and an active real estate investor. Jeff is also a graduate of Leadership Brazos (Class of 2014), a professional leadership program through the Bryan-College Station Chamber of Commerce.


Jeff’s wife, Liz, also attended Texas A&M but is a graduate of the University of Houston Pharmacy School.


Jeff's world revolves around twin kiddos, Mallory and Miles.


Jeff and his family place great value in their faith and attend Grace Bible Church. When not working, Jeff enjoys anything outdoors, CrossFit and sports. He played club lacrosse at Texas A&M for 4 years and continues his involvement in lacrosse through Team Viva, a Texas A&M Alumni team. 

Contact Keith: keith@12realty.com, 979-220-7230


Co-Owner/Realtor: Keith Roberts is blessed with a beautiful wife and 3 amazing kids. His family fell in love with the Brazos Valley while Keith was teaching Army ROTC to the Texas A&M University Corps of Cadets. Before retiring from a 23-year long career as a US Army Ranger, Keith deployed and re-located numerous times. So, he well understands the stress associated with Moving & Buying and Selling a home and seeks to make other family’s moves as stress-free as possible!


Keith is the Co-Founder of the Brazos Real Estate Investor's Club (BRIC) and is an owner and Home Buyer for HomeVestors® - RockWater Investments, LP. He has helped many people out of Ugly Real Estate situations, bought and sold numerous properties for his own Investment Portfolio and has helped many other investors grow closer to financial independence through successful Real Estate Investments.


Keith serves as a Deacon at Grace Bible Church in College Station and when not working he loves to be with his wife, a former Army Helicopter Pilot, who serves as a nurse at CHI St Joseph Health or he can be found chasing after the chaos of 3 kids and their sports!

Contact Nick: nick@12realty.com, 979-587-4610


Realtor: Nick Cantrell found his way to Aggieland from Kansas in 1998 and graduated from Texas A&M, Class of 2002 (Whoop!). He was in the Corps of Cadets and commissioned as a field artillery officer, spending over 5 of his 7 active duty years overseas. Nick eventually found his way back to Aggieland and attended graduate school at the Bush School of Government and Public Service, studying international affairs. He then moved to Bastrop to work in the state capitol as the senior policy director for a state representative, but kept feeling the tug of Aggieland pulling him back. God intervened and provided an opportunity that, coupled with his budding interest in real estate and friendships with Keith and Jeff, allows him to help other people move to the Brazos Valley and experience all the wonderful things it has to offer for students, families, businesses, veterans and retirees. He is passionate about this area and helping people find the right home that best suits their needs. In his first year, Nick represented buyers and sellers of residential, commercial, and land transactions, and looks forward to continuing that diversity by adding real estate development to his experience and expertise. He is also actively involved in organizing and participating in the Brazos Real Estate Investor's Club (BRIC).


Nick has a wonderful wife who teaches at Texas A&M University in the Department of Teaching, Learning, and Culture and is also class of 2002! They are blessed with two children—Will and Lily. In his precious spare time, Nick enjoys fishing, hunting, and anything outdoors. Nick puts his faith first and carries those values into both his personal and professional life.

Contact Antonio: antonio@12realty.com, 979-820-3482
Realtor: Antonio Hernandez graduated from College of the Ozarks in 2001. He graduated with a Bachelor of Science in Business Administration and a minor in Spanish. He played collegiate baseball there and baseball remains a huge interest in his life. One of his goals is to visit all of the Major League Baseball stadiums in the years to come.
Antonio has been local to B/CS since 2010 and has lived most of his life in the Brazos Valley as he is originally from Navasota. His passion for real estate started in 2012 when an investor reached out and asked him to "bird dog" properties. After helping said investor acquire multiple properties, he was hooked. It took him a few years to find time to get his real estate license as he is a Spanish teacher in Bryan ISD. Antonio loves to help people in the Brazos Valley with all of their real estate needs and being bilingual allows him to help the Spanish-speaking community in the Brazos Valley.
Antonio is blessed to have married his beautiful bride Rebecca. She currently works for Texas A&M University at the Nuclear Science Center. They have 3 sons together Jordan, Noah and Keaton and granddaughter Raina. The Hernandez family attends church at First Baptist Church Bryan, where he is a member of the Men's Minstry Team.

Contact Rocky: rocky@12realty.com, 214-803-2087


Realtor: After a career in clinical research and development Rocky has started a new chapter in real estate with Twelve Realty. 

Rocky first moved to BCS in 1976 and that same year married fellow Aggie Diana Brumley.  After graduating Texas A&M in 1978 Rocky and Diana have lived around Texas including three separate occasions in College Station.  They were blessed to raise their children in Aggieland making it their hometown. The blessings have continued as their three children’s families now totaling 11 grandchildren all live here in Bryan College Station. 
Rocky and Diana who is Director of Donor Relations at the George and Barbara Bush Foundation enjoy the outdoors and spending time with their springer spaniels and grandchildren.
Rocky chose Twelve Realty for their commitment to offering clients unsurpassed, cost-effective real estate services in today’s dynamic real estate market.

“Work as if you were serving the Lord,

not as if you were serving only men and women.”

Ephesians 6:7

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