Do have currant registration as well as a Dr. letter stating that they are not pets but register therapy dogs."

The simplest fix for this would be BP implementing a mute/block feature that actually does what you'd expect it to do.Currently, they do have a "block" feature but I believe it only stops people from being able to send you direct messages.

I hired a lawyer who wrote a letter and was able to negotiate loss of just 1 month of security deposit vs 3 months of rent that was earlier demanded by property management company.

And for a 80 yr old, it better have grab bars attached to blockings.

It's the other 3 letter acronym. 

Create a written policy for yourself, sample letters, forms, or whatever else may be needed.

One challenge with this is that some people only have a first initial given as their name, so the punctuation that appears next must be typed followed by any other numbers or letters.

I have 3 bedroom 2 bath residential home in a nice area on a nice block which all the neighbors have well kept up and clean homes.

Send out a letter reminding tenants what is and is not acceptable.

They were able to get moving much faster because they had access to a great website, forms, letters, and even policies and procedures.