Through blood, sweat and cash-flow we developed a decent model that generated above market returns for us.

You will likely need to redo every door jam and all trim as sheet rock is considerably thinner than plaster and lathe.

Also, if it’s a neighbor and you like them what I’m describing may not be a great approach 😂 I actually had a neighbor once who got divorced and his house foreclosed on and I stayed clear of the deal cause I didn’t want any bad blood between us.

Most of the time it takes money, blood, sweat, and tears!

Here is info from an older post that might help with your research.That probably stems from the definition of a "family" in the City of Pittsburgh Zoning Code [see art. 9, ch. 926, § 76(b)]:A group of not more than three (3) persons who need not be related by blood or marriage or adoption, living together as a single housekeeping unit in a dwelling unit, and shared common facilities as considered reasonably appropriate for a family related by blood, marriage or adoption; in either case exclusive of usual servants;So I guess any house zoned as "single family" can technically only have one such group living in it.

From time to time, there are syndicators come on here and talk about how they go from 0 doors to 2000 doors in 2 years....I have always wondered if these syndicators simply suck the blood out of the "syndicatees"...Anyone knows?

Small business and entrepreneurship is the life blood of America.

For durability you want a decent wear layer (say at least 12mil), and you also want thicknesses of at least 5mm to hide any imperfections in your subfloor - and 5mm is still on the thinner side so you probably want to do a plywood underlayment (in the case of a wooden subfloor) to provide a very smooth surface.  

He's determined to find blood where there is none. 

This is how Summit defines a family.Two or more persons not necessarily related by blood, marriage, adoption, or guardianship living together in a dwelling unit as a single housekeeping unit under a common housekeeping management plan based on an intentionally structured relationship providing organization and stability.