Those activities are typically going to be either totally original, in which case don't share it here ;) or it's going to be something that doesn't scale well and thus doesn't appeal to large concerns.

Don’t forget mobile homes are different than manufactured homes.

Low barrier to entry.(1) Self manage or (2) price extra vacancy, turnover, and repair costs in your financial models or (3) scale to professional apartment management. 

This way I can convince my partner to go in on deals with me by saving money and him receiving higher returns.I continue to save my capital but I cannot save/earn at the rate I would like to scale.

However i would like to scale up a bit and expand my portfolio in multi family. 

-Being a non citizen, I have to go through a fidecomiso which makes buying on a small scale much more expensive.

Go with a major manufacture Lumber liquidators sucks they discontinue there product line all the time and you will be left with flooring you can’t repair in the future.

Windsor is slowly evolving being manufacturing and I have personal hopes that one day we become a  sort of "tech hub" given our proximity to the US.

After the new year I plan on doing a very small scale, slow direct mailing / calling on currently off market multifamily properties.

If you can take some of that “earned” capital and scale the investment you’re on your way to building that times over (if that is part of your plan).