You could manage for others with their license and permission maybe?  

It's less about who wants credit for a cool cabinet layout and more about not having the architect's design re-used without their permission.

Also, the office manager for this company asked me to call our mortgage company to grant her permission to speak with our mortgage company directly.

He told me that if I gave him permission, he could refuse any offers below $X, which is exactly what I did. 

You might just allow overnight guests with permission.

That stated, I do own and rent several MH's in MHC's, however, I do have the permission from the MPO/Manager.

Landlords should be pulling credit on every applicant and that involves the applicant providing a social security number on their application along with them giving your permission to pull the credit.

Do you have written permission from landlord for that?

The house I have lived in for 7 years with permission from my father was given to me.

Obviously, they shouldn't be changing the locks without your permission in the first place, but now that it is already done, you must get a key.