Sell Your House Fast In Texas! Southern Hills is your best bet if you want to sell your house fast for cash in Texas. Expect to get the best cash offer when selling to us. Our simple 3-step process ensures you get your home sold as fast as possible without making you live through the complicated process of selling a home in Dallas, Fort Worth, Plano, Garland, Mesquite, Arlington, Grand Prairie, and surrounding areas. If you are looking to sell your house for cash, we can help.