Yes Am US citizen but Canadian permanent residence.

Last month, his daughter, son-in-law, and their five kids aged approx. 12-1 yr old moved in from out of state temporarily while they look for a more permanent place.The lease prohibits guests for more than 30 days without my permission.

I would also make sure the tenant was referred to the section of my lease that states: “…Any additions, improvements, or alterations to the Premises made by the tenant of a permanent or semi-permanent basis become the property of the Landlord.

This was an all cash deal due to condition and non permanent foundation.

What happens is that when you oppose it at your bank, the bank wants you to "oppose" them permanently to avoid future debits, which makes sense.

My mother now has a severe illness and in a nursing home permanently.

I could have 50% of my places sit vacant permanently and still be making money overall.

Also, the current owner, may have best intentions to move out on the scheduled day... but then have something come up that prevents him moving.Do you live in the Cleveland area as your permanent residence, or are you an out-of-town guy? 

Any words of advice on how to evaluate a multifamily with mixed types of buildings including a permanently installed mobile home?

I secure permanent financing in advance as well.