I live rent free for now in a landscaping shop my family owns. 

I am about 5 minutes from great shopping and all that the area has to offer. 

For instance, I know a few shop owners, mechanics, restaurants, etc. and got permission to put my business cards on the cashier counter.As far as the numbers, if they work and you can see them working in the near future, then why not?

In good to better shopping centers, e.g. well positioned un-anchored strip centers with chain store tenants or strong grocery anchored centers, it's very common.  

If i go this route was considering a $500 limit, which should supply enough drywall, mud, screws, etc. to get them through the drywall repair stage.

He couldn't pay it before, so I doubt he would be able to pony up the money now.The house is in a good location and needs a moderate amount of repairs, the numbers are positive.

What kind of repairs does it need? 

If I can be of any help or provide advice, welcome to do it...if you need help with management or repairs and renovations we would love to help. 

The problem with that, as I see it, is that the repair costs are part of what determines your offer amount (the whole 70% minus repair costs thing).

If either one of you ever want to talk shop I am more than glad to chat.