I don't know your experience level but if you don't have time you could play the numbers game and carpet bomb the whole neighborhood.

This means the crime level shouldn't be high, the median income > $40K - $45K, and there should be enough homeowners in the neighborhood.What else I should care about?

The city says there are significant lead levels in the home.

To be clear, I believe real estate should be owned by an entity but there are other things that are far more critical to protecting yourself personally as well as your real estate assets such as appropriate levels of insurance, well drafted vendor agreements & collecting insurance certificates coupled with understanding how to correctly operate the entity in which you form.

I've been investing in the stock market for 30+ years, but am at the point where I'm ready to diversify more into real estate.I've been lurking on the forums here for quite some time and I am amazed at the value of the posts and level of knowledge that exists here.

As an extra level of protection You could try and save up a few months of what the potential mortgage will be to give you peace of mind. 

What you are talking about is a tiny home which addes even more levels of difficulty in getting approved.

I haven’t heard the story of  the investor who rode the coat tails of a wholesaler to the same level of success but networking and building relationships with wholesalers seems to be prioritized over all others industry participants. 

On a high level, I would house hack a MFU.

You do have a lot of leverage, and your comfort level is a personal decision for you based on your finances and ability to sleep at night.