Be mindful of regulations and specialty taxes imposed on parking operators. 

So long as the property is the seller's homestead or is being sold to a family member, the SAFE Act licensing requirement does not apply.Owner finance, though more limited and regulated than ever before, remains alive and well in Texas, if not as widespread and uncontrolled as in days past.

I wouldn't buy another rental here with what's going on at the county, city, and state levels of government unless it was a sweetheart deal.

Then from there do your homework to research - hire a surveyor to find out exact boundary if you didn’t receive a survey before closing, and check with city on the exact rule / regulation, and if you purchased title insurance, find out from your RE agent for more details.

What sites do you all look at- government sites?

You have foreign governments giving stats you can't trust.  

Within 30 days of owning the property we executed 2 signed LOIs for a medical user to lease 1,900 sqft and the government to lease 6,000 sqft.

If you buy a property and your only viable business model is a short-term rental, you could be in a world of hurt if the local government bans short-term rentals. 

Perhaps there are some rules/regulations on the horizon that will affect the STR market? 

Mortgage lenders are more flexible nowadays due to the increased regulations afte the 2008 crash.