Going after every single dime, at the earliest opportunity to the fullest extent contractually permissible has an opportunity cost and may not always make commercial sense.Because I don't have a  mortgage obligation I am prepared to waive contractual rights, reduce rents and write off arrears in order to achieve a sensible balance between the costs of atttrition, retention and acquisition and an appropriate use of my time.The contract is invaluable in the event of customer attrition where either party seeks to exit the contract, but it is not a ball and chain that must slavishly determine my actions.You might say the tenant is training me rather than the other way around I'm not in business to train anybody, it's not a battle of wills.

These tenants have never lived here with permission, and have never had a contract with me, your honor, they got to go.  

I gave them written permission for a long-term guest over summer.  

Tell them, if they are not happy with the condo, that they have written permission from you to just give you 30 days notice if they want to move.  

If you use one of them, be absolutely certain that your paper application explicitly gives you permission to run the type of background reports you plan on doing though.

As recently as the 1980s, married women that owned property "sole and separate" in some states would still have to get written permission from their husbands to sell, refinance, etc, the property.

As you requested, I have given you permission to deduct $400 from your June, 2016 rent, as payment in full for the painting that you did.I consider this a concession, as we had not discussed the details of my mentioning that I would reduce your rent for painting.  

According to the California Penal Code, one may maintain a criminal action for Trespass to Chattels should someone interfere with the property of another without permission.

But, what I'd do is give them written permission to have a long term guest over the summer.  

My property manager has to get my permission for anything below 700.