The problem you will run into if you want to do this through the HOA is that there will be a small yet vocal group of pet owners and animal lovers that insist that treating for mice is harmful to their pets or cruel to the mice. 

When dealing with a homeowner, I would at the very least insist that they be represented by counsel.  

You have to talk to the right agent and keep trying, and insist they have an annual program.

Also, can I insist on single occupancy in each room without violating antidiscrimination laws? 

I kept insisting on refund, and they kept gaslighting me saying I'm just "confused" about the deal... they've explained it to me like 5 times.

Simply point out the issue and insist it is addressed before the closing.

Even with that, he insists on putting the wrong key in the locks.  

I'm the one who insisted my mom put her equal on stuff cause she was the oldest kid.

If a bank insists on using your SSN, consider finding an alternative bank.

(This should be cheaper because no personal items are insured.) and then insist the tenant’s get renter’s insurance.