Some Wall Street forecasters claim 100K to 300K with about an average of 150k by end of 2021.

Goals are great, but you are throwing a lot of things at the wall right now.House hacking is a great option for a lot of people, but you already own a home and have equity in it.

Not getting at least a title search is off the wall crazy.Land contracts/trusts will work but they are passive trusts and individual liability will continue. 

As far as say a vanity, always go back with at least the same size, will save you ton of work fixing walls, floors etc.

Anything that can be hung on, swung from, or ripped off the wall should be removed.

If the tenant identifies an area of moisture that may be causing growth we immediately address the source of the moisture, replace and damage building material (usually dry wall) and or use mold cleaning solutions/mold blocking primers as required. good luck

I opened the walls up once.

I think this might be a low point because the Canadian government is trying to pump the housing market before the election next year by lowering rates, relaxing mortgage insurance conditions etc.Yes they have been putting in all these measures to prop up the housing market as they see the pending implosion writing on the wall. 

And can I get away with only getting permits on new electric & moving plumbing, but demo,  erect walls myself and things like that?

For example we write exclusive use of the rental property includes use on two sides to the tree line, on one side to the rock wall and to the front curb.