Background Checks Resource

I did a  tenant screening on a potential tenant and it came back with a lot of collections.  I cannot decide weather to rent to them or not. The tenant credit check says most of them are unpaid and they seem to be medical related. I cannot decide what to do. Does this really effect how they pay the rent and take care of the property?? I am not sure. Maybe I will just ask for a larger deposit and see what they say about that. I am still going to logon to  www.instantbackgroundchecks.us for a criminal check and see what that produces. If they have any kind of criminal record I probably won’t rent to them.