If not what else would you suggest?

Personally, I would take the matter into your own hands rather you take care of it or hire someone else to take care of it.

I tried to read the PA statute for this, but it's a disorganized mess.

I am looking for a personal umbrella policy which should be under US LI(Do you recommend anybody else).

What else can I do to figure out how to buy this property? 

(and anyone else following): you’re right that this is still a bit specific to the Boston market - generally for investors, sellers will assume a $1k waiver is just a gamble you’re willing to give away if you want to back out.

He can help you with management and everything else. 

Generally speaking if a buyer facing this scenario moves forward with the purchase, he/she would want to be sure that SOMEONE ELSE pays for the damages if forced to remove the house, deck or driveway.

Become a master in one thing then once it's good, you can move onto something else. 

Being on someone else's clock really bothers me.