She will avoid an eviction on her record, not incur further costs, and might prompt her to stay in the hospital longer.We recently amended our emergency contact form to include a section of the form where the tenant gives permission to a person they name to remove their belongings from the apartment "in the event of their unanticipated prolonged absence from the apartment".  

Our employees could theoretically see your calculator results, but if I hear of employees doing this for personal gain or without user's permission to solve a troubleshooting problem or fix a bug, I would immediately recommend their termination at BiggerPockets.

That is what is required is notice, not permission.

Working with an investor to help locate homes for sale in exchange for mentorship should be permissible I would hope.

Not something to be charged to the tenant.The only time it would be fair to charge for lock re-keying is if the tenant damaged the locks or changed the locks without your permission and you had to change them back to maintain a means for access in your role as property manager/landlord.

I let them hang them selves then told them you realize I own the lots your talking about and I never gave you permission to go market them and even if I did its totally illegal in our state to sell something you don't own..

I'd much prefer a tenant who puts forth requests and includes me in the decision making process, rather than proceeding to do something themselves with the notion that it's easier to ask for forgiveness than for permission. :-)

My main concern is that total occupancy is under the limit I have set, that all occupants get a criminal check (require the tenant pay for this), and that the tenant understands that they must get your permission first (one strike, another brings heavy consequences). 

(without my permission of knowledge). 

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.