Keep in mind the taxing authorities take averages of similar properties in your area to arrive at a taxable value.

Authorized occupants cannot be held responsible for rent or damages, need to be added as tenants for that to happen. 

It seems San Diego, Orange county, southern CA area and parts of the western US is experiencing a number of commercial tenants collapse or near bankruptcy such Fresh and Easy, Sport Authority, Sport Chalet, Toys-R-US and more it's getting ugly for some commercial investors. 

Yup they were in my families name.. but do check with local authorities my experiences are CA..

We recently revised our emergency contact form so that tenants specify who has the authority to remove their belongings in the event "of an unanticiapted prolonged absence from the rental unit".  

You want to start reading a whole lot of books, especially the ones authored by Biggerpockets.

I would imagine that the authorization amount $$ is listed in your management agreement, i.e. anything over $300 will need owner approval? 

You own the airspace above your property meaning you can remove any limbs hanging over onto your property.I wouldn't remove a tree that is on their side without permission, but limbs hanging on my side I do remove.Contact your local housing authority or real estate attorney to find out what your state laws allow.

Some of the debt is their student loans, some are credit cards which some says the person is an authorized user on the account and then there are 2 auto loans.

At the end of the day, the sun will rise and set on IF local authorities want you to do this.