Texan Markets Near the Mexican Border

[Audrey Sommer]

Currently, I'm analyzing different markets to see which one will best match my strategy. I have a cash flow heavy, modest appreciation strategy. I'm noticing there are some really nice cash flow markets in texas, some of which are really close to the Mexican border, though. Asking to anyone who has experience, knowledge or connections in these southern texas markets, how has this or does it affect your real estate strategy and returns? 

Take brownsville, for example, very good cash flow market. However, it's smack up against the border. That says huge red flag to me. Even with trump's aggressive plans for mass deportation and border security, I also have to think long term about future presidents' agendas towards border control too, and anticipate potential presidents being more loose on border security. In these markets, I would be worried about crime, activity of illegal immigrants, and such. 

Your feedback is appreciated.