@Jay Lo you need to talk to a local have contractor the size and layout of your units will determine your how much air you need to move.

If the pressures me to do the final inspection, I'll say that "I can't do it right now because I need to pick up my kids, plus I want my wife to do it with me since she has better eyes."

Rei strategies that work well for generating income would be flips,air bnbs, real estate sales, wholesaling, or other businesses associated with real estate. 

It’s on air bnb doing well Lessons learned?

It’s on air bnb doing well Lessons learned?

I'm going to list off some of the lowest hanging fruit from that perspective below:Attic/ceiling space often can be helped immensely by blowing in additional cellulose insulationWindows and all wall terminations should be examined and caulked/filled with expanding foam insulationWalls can often be supplemented with additional insulationRim joists, basement walls Look into selectively upgrading your main appliances (water heater, air conditioning, furnace) with high efficiency unitsOld fridges use a lot of electricity - you might take a look at what you have there and consider upgradingSome utilities have programs to offer rebates/incentives for upgrading much of the above so I'd look into that if I were you!

If you can, find several people doing this in your area (ie call listings on VRBO, Air BnB) and pick their brain, etc.

Then the problem belongs to the seller.Finally, you can take steps to get the unit legalized, assuming certain conditions exist (ie, there's 2 means of egress and large enough windows in at least one room to satisfy light and air requirements).

This weekend, I looked at several properties in Burkburnett, TX (near Sheppard Air Force Base). 

Maybe air bnb it some times or Rent out private rooms.