You need to do this legally, complying to all existing laws.

We assisted in the procurement of the new tenant, but put them on a joint lease.We do rent by the room in most of our other apartments -- those are individual leases and we would consider this a violation of quiet enjoyment and serve a comply or quit if it were one of those units.

However, my tenants requested to install their own cameras and I complied. 

These must comply with HUD or state laws depending on where they are manufactured.

If there is an amount stated and repairs are within it, then point it out to him and hopefully he’ll comply.

I'd prefer my screening criteria to be as tight as possible while still complying with all laws.

If you fail to heed that they can eventually put you in jail (they give you several chance to comply but if you don't they have the hammer),  They take water very seriously here. 

You communicated a desire for quieter music, they complied.

Failing to comply with these requirements could result in penalties or even the cancellation of your mortgageAre you planning to refinance?

We paid over $1,000 cash, just to find out the tenant was not complying with the lease.