You pro rate only if it's written into the deal that way as a consideration and that may not be a smart thing to do since you are setting expectations that you may not be able to fulfill.

The occurrence of any materiel adverse effect in (a) the validity, performance or enforceability of any Document, (b) the legality, financial condition, business, operations, properties, prospects, or profits of Borrower, or (c) the ability of Borrower to fulfill its obligations under the Documents or any material contract to which it is a party.11.9.

Now you have plenty of income and a job that you find fulfilling and you are happy. 

“Plaintiffs claim that the ordinance operates as a per se taking because it singles out private landlords to ‘address a perceived, though vaguely identified, societal problem’ related to housing needs.

I would like to be a more involved owner and start fulfilling some of my obligations, can you walk me through the history and finances of my property?”

On a base level we all invest for money, but money alone will not fulfill anyone.

Remember, the current tenant is still obligated to fulfill their duty to the lease they signed, so if neither of you are able to find someone, it is still the current tenant's responsibility to pay the rent.

What qualifies as intent and circumstances to fulfill that intent seems to me to be up for interpretation.

What percentage of signed leases fulfill their full term?

These are real societal problems and they won't simply be solved by strengthening our faith in capitalism and a free market.