If you do sell, the most passive alternative out there is buying index funds (although I'm not thrilled to buy at these levels honestly). 

The floor needs to be "clean" and level or anything underneath these (although they are considered a floating floor) can eventually be felt. 

Today, we are at unprecedented levels.

The upper level of the home caught fire.

The 2015 Right to charge law requires I let Tenants hook up at their expense only id prefer to do all the electrical my way so we don't have every unit doing it differently I'm adding level 2 charging so I can charge higher rents.

Assuming you are not at that level of wealth yet, just purchase it in your name and keep it simple.Good luck on your first purchase, don't over think it!

., however, there is not going to be any single source that will give you a neatly bundled market analysis at the zip code level.

I'm gonna play "Ken McElroy" here for a minute and opine on high level trends:  the pandemic shook up the nation's population in terms of where people want to live. 

I have potentially started in multi family investing at the commercial level, then expanded to self storage in mobile home parks.

There are so many things you need to know about the plots of land you would be targeting - are they leveled, foundation options, water tables, access to public water and sewer - and that's all before you confirm the right prefab and also confirm that there are local builders who can do the foundation work and then assemble and connect.