Keeps the cleaning simple and cheap, and ensures that your room is exactly how you left it and your belongings safe no matter what happens. 

Wouldn't that then ensure that no one else can have the home under assignment for however long is stated in the contract?

Ensure when and who should be responsible for snow removal.

This will ensure that "the tenant will have to deal with you before they can get another apartment, car loan or credit card.

I would keep an eye out for a lender that could get you a verified approval letter that has been reviewed by an underwriter so that you can ensure you can move forward with whatever loan option the loan officer and you discuss.

In the future you may want to consider ensuring all occupants are on the lease.

Definitely use a 3rd party to ensure proper application of the payments. 

This ensure that if they split up for whatever reason, the whole rent still needs to be paid by either one or both of them, no exceptions! 

This requirement is in place to ensure that you have enough funds to cover any unexpected expenses or vacancies.

My guess is that it involves a filter delivery program that ensures you have a clean filter delivered to the home to install every three months, thereby ensure the furnace runs efficiently and reducing maintenance costs.