You are many, many years to late for those prices unless you don't mind D or less areas. 

Sec 8 has it's place,  A) if you are big and can afford to specialize (or subspecialize) in it or B) you are focusing on an D or lower area where the market renters are going to be even less reliable and and even more hassle than the government.

I've seen some vacant lots that are listed"08-Multi-Family-Less Than 10 Units" as land code use in the MLS, for example, but when I look up the Classification/DOR code in the county records the same property is listed "00-Vacant Residential"... so if it's classification is "Vacant Residential" will it change to the "08-Multi Family-Less than 10 units" once it's built.

., knows what they are doing) at H-D or Lowe's. 

Here's step one from AirDNA's site: https://www.airdna.co/airdna-d...Or you (or anyone reading) can DM me and I can help with understanding this. :)

:D Or at least in my case.

From my view, investing in a multi-family in a C/D (or seedy, if you prefer) area is kind of missing the point.

New homes are usually insulated to R-38 for attics, we will do R-50. 

A "D" in another region might be an inner city 'hood with a majority blue collar population.If you grew up in a D or F your perception of what is truly bad is going to be different than the perception of the private school lacrosse kids.

Rehabbers usually succeed in areas that are"A" or "B" but they have a hard time moving properties in C, D or F areas.