This is due to the quantity of turnkey flips here, most likely, though we do have a booming retail flip market going as well. 

I agree  in the best way would be to track down the top retail brokers and ask them. 

I am investing Baltimore and the greater Baltimore area and that it would be helpful to have a list of SKU’s for rentals and for retails that I could use as a springboard or reference point.

The 120k+ high volume properties in the area MIGHT get you to 1% but you compete against retail buyers (or flippers if you're doing rehab).

If you plan would be to wholetail it to a retail buyer, consider that you may have some issues with the buyer's appraisal. 

My houses now cash-flow above that and I also chose to house-hack and live in one of the main floors and rent the basement so my living cost is only 500 a month for me and my wife.Don't know if it is the best strategy but it works great for me and I have learned alot at my own pace. 

And that will be your emotionally invested retail owner occupants 19 times out of 20, and that 20th time it'll be something that is too scary for the owner occupants and REI are the ONLY ones who will buy it. 

Are you calling typical retail banks? 

Anyone ever qualify as a builder with a manufactured home company and buy their homes at a discount to retail?

We have to fix the wild out of control form of math first , then move forward to then control the rest of it.For example: commercial retail taxes needs to be taxed per foot-per proximity to corners and/or car counts, amount of parking, etc.