A 27-year-old real-estate investor who rehabbed 7 Austin properties last year is now targeting San Antonio, where homes can cost less than $100,000. Here are 3 reasons it's the next big investor hot spot.

• Real-estate investors look for spots where they can buy low, renovate, then sell high or rent out.
• San Antonio's value and big-city perks make it a desirable place to flip homes, one investor said.
• Flipper and landlord John Crenshaw breaks down why he's focusing on Texas' second-largest city.

Austin real-estate investor John Crenshaw said he only worked for someone else once. 

For a brief spell, when he was 17 years old, he worked at a branch of H-E-B, the popular Texas grocery store. After that, he turned his passion for gaming into a successful resale business by fixing up and reselling broken Xbox and Playstation consoles.