Another incident was when I received a phone call from one of my tenants letting me know that the SWAT Team had busted through the front door, hand cuffed everyone (I had an older couple living upstairs and 4 guys renting downstairs) and started a thorough search though the house.

The loss rents should come quickly (at least then did from Farmers) and stop one year from the date of the incident (again, farmers).Get your contractor(s) to bid on the restoration AND get them moving too.BE SURE you follow contracting guidelines for your state; in Calif, the EMD can not exceed 10%of the contract. 

Too bad about that liability incident and the victim is suing you for everything you have....can they get to the 401k?  

This point of time you can only wait till they are out and keep in touch with the property manager ,hopefully they will just move out without incident .

I wrote a long email (to establish a paper trail) with the incidents where I thought they did not perform their job, Looked up a few statues and accused them of a few things that it would have been pretty easy to prove they did, had it come to that and sent it over.

At this point, is there any safe option for me to proceed with the home, possible protection form a home owners insurance policy If the HOA is sued and all the homeowners are found liable, even if I bought this home long after the incident (took place about 3 years ago)?  

The first thing I would do is document everything while it's fresh: weather conditions, time, location, contact info, agreement in place with contractor, video of incident if available, time you received notice, copy of the tenant's incident/accident report, etc.  

Tenant, put coke's bottle in my mail box, I guess it has his urine in it.I called the cops and reported the incident.

Some neighborhoods may have higher crime incidents (nothing serious) than others.

The HOA began levying fines against these tenants right away, the trash compactor incident was a large fine based on the fact that they broke the machine.