You believe the purposefully scratched the fridge to cause you harm?

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

I was travelling when it occured to me that It had been long enough, I could likely negotiate a lower price.

What type of claim can occur that would not be covered by your PM or insurance ?

They have very big networks. so many times very dangerous or may harm other people.2.Here the Rent control act is very socialist so the housing rents are very low and stagnated.3.Only the big play is in commercial real estate. 4.Interest rate on home mortgages are 6.55% minimum.5.Upto 90% LTV on housing in some banks.6.Leads that i get is either having dispute or some documental issue or that have threats of dangers and red flags.7.There is no digitization of public records.8.There is Mls but no one in this village prefers mls to sell or buy, they go through brokers.9.College is at outer side of village and i am almost 2 km apart from my college.

It's just recently occurred to me that I'm regularly holding $10k+ in security deposits.  

A demand letter from an attorney should have been sent before that occurred but who knows, maybe if sent now the seller will feel pressure and come around.

If they moved out you would most like to occur some kind of expense to get the same tenant you already had. 

Performing the rehab by myself may be rewarding but I need to hire a crew in the future to reduce holding and opportunity cost that occurs with long duration rehabs.

No, but it does prove damage occurred.