I will provide housing to Intellectually Disabled Adults in the near future.  

I would view a family of 2 adults and 2 kids as preferred tenants over a couple, an uncle and a friend just from the standpoint of wear and tear from multiple adults, stability, etc.

It is a business deal, you signed a contract, they are adults and should just understand that leaving garbage around is unacceptable.

Because it would be 3 adults living in the house I added a price increase to the rent.

My partner suggested I contact them, show them the house, and those that fill out an application will have to fork over $25 per adult for the credit check..and THEN I would reject them based on their eviction history. 

@Rhiannon Then Definitely run a full credit, criminal, eviction check on her and any adult over 18 that will be living there.

If somebody didn't qualify on their own, as a grown adult with their own income and their own references - I didn't want the job of teaching them how to be an adult or to give them their grown-up consequences for being a grown-up adult who didn't act like one in my building.Just say no.  

The unit is roughly 500 sq ft and has two adults & a child living there.

All adults know where they can push the limits. 

Totally agree on not babysitting adults.