Department of Agriculture may have information about service animals but they do not create the laws.ADA covers public spaces.Fair Housing covers residential rentals.I wrote a blog about it HERE and it should answer all your questions.The short version is that you already accept pets so the only request for accommodation would be to waive any pet fees or deposits.If you do this enough, you'll learn that the emotional support animal laws are absolutely abused.

If you can't test it, assume it doesn't work and budget to replace it.

This is changing and some landlords/property managers are accepting anywhere from 4 payments to a month-to-month with a small convenience fee added.- There is a service fee for building maintenance.

It would no longer be acceptable to use certified mail to deliver a pay-or-quit notice.

Because the winter market in general is slower, I'd require them to accept this Dec appraisal.   

@Courtney JohnsonA covered land deal is when you think some piece of land will have redevelopment potential in the future ie. it will sell for way more than you'll pay for it now due to appreciation, but in the short to medium term you find some use that pays the bills and generates an acceptable return. 

Accept it and move on is perhaps the best approach, wouldn't you agree?

By the way, it is my understanding that Cozy won't accept partial payments.

This is pretty disappointing from the point of view of a newbie Bay Area investor, as 3-4 units fail the FHA self-sufficiency test.

You’re in contact with the seller and they accept your offer.