Don't worry, it's the last piece I'll put in this thread.

Have a Licensed Plumber inspect the property after you own the house and you will have your piece of mind.Are there signs of a leak that came up in the Home Inspection?

I then lowered the offer price to 70k since I wouldn’t be able to complete the due diligence piece.

This is why the GC should be responsible for ordering, accepting delivery on and installing every single piece of product on the jobsite including the nails and screws.

A piece of advise if he lays hands on you or your son immediately go to court and see if it qualifies for a peace order or similar. 

All will be delivered vacant, apparently I missed the piece in my offer that allows the seller to stay in the unit up to 7 days after closing... 

I have some money put away but I am trying to avoid 20% down on the next property.Any recommendations on how to best finance property #2 with these pieces already being in place?

That little piece of paper saved him a fortune in legal fees and stress.Gather Hard Evidence: You’ve already got a strong start with appraisals showing the property as a four-unit.

Its more like 98/2 with an additional 5% saying they do stuff so they can get a piece of someone else's hard work while they have not done anything and live in their mom's basement.All that said there is value well over the cost for those who apply themselves to deriving the value. 

Everyone want a piece of the pie.Joe Gore