Some property owners sign a contract to sell their home before determining if they are qualified to buy another. Their financial situation may have changed since their last purchase, and they can no longer qualify for a loan. Maybe they weren't able to sell their home at a price that allowed them to buy the type of replacement property they wanted, forcing them to rent or buy something that is far from ideal.
If you are thinking about selling your property, get pre-approved by a reputable lender. It's also important to talk with your Texas REALTOR® about the area where you wish to move. This kind of preparation can help you assess exactly what it takes to buy the home of your choice.