So that initially gave me concerns that his CPA does not have his best interest in mind!

I am looking to lock in low rate, permanent fixed rate loans for my properties.  

All 4 rooms would share the one bathroom in the main house (which is my major concern).  

They have been late for three months in a row including this one and we are concerned that they may not pay the full amount this time.

I asked him about the surveillance camera he said he doesn't want it anymore, the camera is still wired and I'm concerned that he may be still monitoring my activity on the driveway since the camera can be connected to his phone.

I have similar problems with our plumbing and construction customers where customers negotiate, agree to a deal and then try to change the deal so they for something selfish that benefits them and with no concern or regards for your welfare. 

As far as I'm concerned, this measure is unenforceable without that process defined and the agency staffed to handle it.

Add him as a permanent guest of the first tenant and state that he must follow all of the same rules. 

That would be really bad and your STR revenue would be the least of your concerns.

The main concern is emergency exit in the case of fire.