We weren’t going to charge them for cleaning or the belongings left behind because we liked them.

However, as I build these contractor relationships, measure and sketch kitchens, and make suggestions on which cabinet boxes to order or whether granite or laminate belongs, I've started to see that it would be pretty straightforward to package it into somewhat of a 'service'.

The law here says it is illegal to open or trash mails/packages that don't belong to you.  

I feel that is completely reasonable, this allows evictions to proceed through the court but holds actual bailiff set out of tenant belongings until after the deadline has passed. 

A better/cleaner scanario would be a closing on the 1st of the month (the day of closing belongs to the buyer, so technically closing on the 31st would require one day of prorated rent).

I found items that belongs to the tenants.

That's not to say you never can build on them, it may depend on who the pipe and easement belong to, but that is my experience. 

If you have to write the Building on a Commercial Insurance form, the investor that lives there will need a Renters policy for their belongings and Liability.

I would give them the opportunity to apply, passed my screening, pay a security deposit, and sign a written lease agreement.The security deposit from the daughter does not belong to the mother and should be treated separately, like you would for any other tenant that abandons a property.

Unfortunately, the men in the family can't seem to keep their hands off my bag, and have no idea what belongs in it and what doesn't.