I live in a really tight-nit community, and I'm want to make a deal that benefits everyone as much as possible. 

Profit margin is entirely too tight.

Encourage him to provide you with his new address by telling him should you re-rent the unit before the April 30th deadline you will return any extra rent. 

I felt that my brother was cutting corners in the work and basically band-aiding problems and not really correcting them in order to stay on our very modest and tight budget.

not too familiar with this but here is a link from the houston CADhas deadlines and other good info.http://www.hcad.org/Resources/Exemptions/Homeowner...

Given the location of Ferndale and how the area has been over the years I'm not surprised this happen to you because you have to keep a tight eye on assets in these areas.

@Nick Chambers This week's pretty tight, but I will pm you for a better time.

I think your margins seem pretty tight on this one.

You need to find the source of the mold: leaking water pipe/roof, ground water penetration, drain pipe leak, windows/siding aren't weather tight or flashed correctly and they let rain in, gutters and downspouts aren't working correctly, or tenants are screwing with you intentionally.

I'm a licensed agent as well and actually see the benefit of wholesaling to the industry...especially in tight markets like the one I'm in.