It is now towards the end of January and he’s only demolished the third floor bathroom, installed new water and drain lines, and put a sub floor down.

I would recommend including or adding water/sewer backup coverage.

HOA covers Water, Sewer, Cable, Trash, and Community area and Tenet Pays electricity.

I recently had an issue where the tenants had a leak and I had to turn off the water, luckily the unit 1 owner who has the water shutoff in his utility closet was home.

Find out from a foundation and drainage expert the true cost and buy the property accordingly.However, keep in mind this is a project in itself. 

It should make sense regardless of the downpayment and then you're just adjusting your cash outlay depending on the loan options or in order to get to a cash on cash return that your comfortable with.I hope this helps and I know this is short notice but we're hosing a meetup at Lord Hobo Brewery in Woburn MA tomorrow evening from 630-830pm if you're available.

There are signs of some water damage. 

@Nathan GrubbTotal guess: Sometimes when the house/bathroom is warm, the cold water will cause condensation on the toilet tank.

Inspector says potential standing water issue during heavy rains.  

I have a property I am trying to sell and the buyers want to close 6 months from now when they are good and ready to move in and would like to keep their inspection contingency until then in case there is any spring water damage or something else happens between now and then.