Knocking a place for enforcing a clearly stated policy would seem to qualify as unfair.It may still get re-booked, since it's a property that specifically caters to pet owners, and there aren't many of those around.I ended up sending him this, which I think is more than generous: "Unfortunately we have to stick to our cancellation policy for events beyond our control.

Especially if they have pets.

That would include things like installing a wheelchair ramp, grab bars and hand rails, lowering counters to wheelchair height, assigning a parking space closer to the entrance, allowing therapy pets in an otherwise "no-pets" rental, etc.Good start here: http://massfairhousing.org/housing-discrimination/...And here: https://www.masshousing.com/portal/server.pt/docum...And here's what happens if you screw up: http://www.mass.gov/ago/news-and-updates/press-rel...

Think of all the things that could go wrong and see if the lease addresses them: unauthorized pets or tenants, early termination, security deposit, lease violations, late rent, eviction, lawn maintenance, parking, etc.5.

As per the lease they were supposed to collect Pet Deposit, but they claim they made a mistake and did not collect pet deposit.One of the tenant's has filed for rent relief and their documentation is not given.

The tenant paid upfront to end of May and tenant then adopted a pet. this pet fee and pet rent has never been paid.

No pets are allowed, but what happens when a service pet is part of the application?

I decline to rent to a tenant and pet that can cause my insurance company to cancel my insurance policy. 

On the revenue side consider adding pet fees and cleaning fees. 

Think of all the things that could go wrong and see if the lease addresses them: unauthorized pets or tenants, early termination, security deposit, lease violations, late rent, eviction, lawn maintenance, parking, etc.5.