I've been toying with the idea of adding an ISA to my sales business.

You have every right to be outraged at the offending party and that's the tenant.Stay focused on what matters and that is getting back in business. 

It is important to remember you own real estate in the Poconos and you are choosing to operate a STR business.

Cost of doing business.

I was told by a friend that his dad who runs an appliance business has "keys to every type of washer/dryer coin box".

i'm considering trying to invest in CT at some point (I used to live there, I own a property there and have part of a business network, and I have family there) and just out of curiosity, I actually looked at new housing starts in CT vs.

You have a job that keeps you busy, but you want to start creating wealth through Real Estate.  

Anything involving a service animal and ADA should be directly consulting an attorney on the matter as every case is different. 

I personally have no connections with anyone who is involved in this niche and I'm wondering how other people have started their journey.

Make it part of your business model and focus on scaling vs managing.