People say "drive for dollars" but city and county code enforcement has pretty much all of the crappy homes listed for me online throughout the area... 

In 3 months time versus 1 year I can sell a 6 million retail center for instance and make a few hundred k or more in commission.

A simple assignment of purchase form should work, look at all the assignment forms wholesalers use, available online.  

If you don't find much online, you may be pulling figures from Brunswick which is a different market.

@Jacob BassettYes, I see these all over the place and honestly with technology and everything online, I would advise against these sales programs that you see on bandit signs.

Despite what you may have read or seen online it's actually a terrible business model & almost always illegal.

Yesterday I filed for my LLC in Iowa my self online.

I like online banks' saving accounts because they pay a good interest rate. 

Have you done a market analysis to see if there's room for residential units, and if you can re-purpose the other building into mixed-use with the ground floor retail or office and the second floor residential, then that would be the first strategy I would look at.You mention it's in an opportunity zone.

I let my online banking software do the tracking for me.