At first he said his credit was bad because he had his identity stolen then when I later asked him about his credit he said it was bad because he owned 285 pieces of real estate before the recession hit.

I've already had my identity stolen once and don't want to do it again, that's why I have a really hard  time trusting websites these days (especially the "sketchy" ones you mentioned).

Also, all copper/freon lines have been stolen from under the house so only 1/3 AC units work.

We're thankful we have had our units rented to the same good tenants for the last few years, but we've had pipes stolen during vacancies and the places were trashed by departing tenants several times.

And there is no one and I do mean no one, who will refund your lost money or take you by the hand when your identity is stolen. 

Tenant ended up taking everything out and the deposit was not enough to cover the regular damage plus the items that were basically stolen. 

We had to file paper copies this year because my wife's SSN was stolen last year and used to file a fraudulent tax return. 

Got to the property I am currently rehabbing and found the door kicked in, with all my tools stolen.

I have not, also how would one know that it is stolen? 

It happened during the tech bubble, the last real estate bubble, the bitcoin bubble and I worry it's happening again with real estate.