Of course to maximize your tax benefit it needs to be sustainable over time. 

These are professionals with additional training and a stricter code of ethics.

While I can contribute some capital and sweat equity, I’ll need a partner to bring in additional funds to close the deal.Here’s where I could really use your advice:1.

The way I can imagine is perhaps putting up additional cinder blocks but that sounds expensive.

Another option would be working with private lenders to see if they're open to your idea should you need additional funding. 

It certainly has a large dependency; you are at the mercy of that one OTA.In addition, unless you are at ideal occupancy, alternate platforms can fill some holes.  

We wanted additional units to pay mortgage and have cash flow.

.- Value add - How much does it cost to build additional storage units?

In addition to that, platforms like HomeAdvisor or Angi are great for finding vetted professionals, and local builders associations or the Greater Beaumont Chamber of Commerce may have directories or recommendations. 

The growth in San Antonio is moving north and the builder incentives will benefit a new investor like yourself.