I don’t remember the addresses, but one was a 100 year old duplex with major structural issues surrounding a central stairwell and the other was a 1950’s build with a block wall tuck under garage that was beginning to shift, causing issues throughout the house.

One of my investment friends didn't have the main plumbing lines check during due-diligence and later found a major issue, it cost 40k to fix.

The properties have a major negative cash flow after attributing a return on the cash and have turned the properties into a liability.I would sell asap before you lose any more money.

That is mostly because the local city-run water department really likes to make a huge mess out of everything they can and just keeping everything in my name has turned out to be easier in the long run. 

My partner who has the majority of the money is flaking.

You can check with the city building department by calling them or going online and ask them if the property has any open permits or violations.

That same day (after the closing) I realized there are major misunderstandings between me and the contractor ($10,000 worth of misunderstandings).

In akron, the water department will give you a credit for leaks if you send notarized proof of us fixed

@Matt Baker Most residential type properties in major Canadian cities will not be cash flowing like American properties.

For what it's worth, the current owner bought it for $40k in 2013 and rehabbed to its current state with new major capex items.