Sam J.
this is a situation i've never been in before. i'm not certain to what length i should go. we're still working out the details. most advice i've read online, and as @Eric Belgau suggested, says leave the professional work to the professionals.
@Joe G., the main sign was their credit wasn't exceptional, but they made enough money to afford the place. sadly, they've actually taken very good care of it up until now, but i think they don't know how to manage money.
i'll be honest and say my mistake was that i wasn't enough hands-on with the tenant selection process and jumped too quickly. i'd hoped to have the place rented out by the end of july before i left for a vacation to costa rica. i didn't market effectively enough and that didn't happen.
my property manager found them while i was on vacation. i was hungry to start making money on this home i'd just sunk a significant portion of my savings into and they "seemed like good people." my property manager is taking responsibility for the bad experience, but it was ultimately my ok.
the lesson here is to do your due diligence in screening and be patient while you look for the right tenant. i'm losing more money now with them not paying than i would have had i waited for someone better. even worse, i'm going to have to kick someone out in the middle of an extremely harsh midwest winter, which i've read is a terrible time for finding new tenants.