I have no hard proof, but I’m suspicious of their stories.

They may be suspicious of you and why you want information, or just lazy, or they could be hiding something.  

(but my question disappeared)I DO NOT RECOMMEND DETROIT for TK type of investments and I am suspicious of TK everywhere.

That is why when someone acts like they don't know the information, it would make me suspicious.

Still no contract so we were pretty sure something was up (as we were suspicious of the whole time) so we called the number he gave us for his lawyer and no one answered.

This, even after I got suspicious and started sending in payments, which they sent back to make sure it went into default. 

I would be suspicious and make monthly inspections just to make sure nothing fishy is going on and to catch a problem with them before it gets out of hand.

i went with what is local to me. shop around, check on fees and service. since i do cash business through LLC, i like to talk to someone at the bank, work through large deposit and large withdrawal (buying the house)...aka not get flag as suspicious.

Many people will be suspicious of someone out of state trying to sell a property locally.

However, I am suspicious.