We perform criminal, credit and background checks on everyone in the home over age 18.

There's a lot that can go wrong and can result in criminal charges if you screw it up.I typically hire private investigators before I've done my adverse possession cases. 

I agree with @WayneBrooks as there are a lot of variables here and anyone who (1) has experience and (2) guaranteeing up to 40% returns would probably already have his rolodex of contacts and wouldn't need your money.I cant advise you on analyzing the development side, but I'd make sure I check the local state criminal records for him (great way to get some info on his past) and ask for past projects he's completed and then do your due diligence and make sure that the builder is actually his company.In terms of specifics:-How much minimum is he looking for?

I'm only 24 years old and have yet experienced a recession first hand so when I make points just take it with a pinch of salt and please don't take any offence to it.

Before I kick the bucket I'm going to make sure these people, a few more than others are charged  criminally.  

I guess it's true that most criminals get caught over simple things (like using your real name on a forum and asking for advice on breaking the law).

And they would get a password emailed the day beforeBut that would also require you to create some kind of fencing, if this is open access from all sides.What that does is eliviate the necessessity for permits and all the kinds of requirements that come with it.

I don't think so now you do a criminal search and find something that is different.

I asked the owners directly if there any criminal activity at the building that I would need to know about and they should me nothing ever happened there.

Sandra,I assume that you mean the tenant is allowing another criminal to live there and that criminal is under house arrest either in lieu of prison or waiting for a prison bed to open up.