That is because both are handicapped accessible and I fix what I need to get the return of $ for renting. 

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.

There are a few self-contained guides that you can access here: https://www.biggerpockets.com/guidesIf you haven’t been to it already, the Bigger Pockets blog features links to their fantastic podcast and many great articles: https://www.biggerpockets.com/renewsblog/

T Cebula Contracting.

Keep your investment near the T lines to maximize possible tenant base. - What is the customer avatar (for a lack of better words) of a MFH tenant?

Expecting about 20,000 sqft of construction (units and common areas).Related info:Type:Garden-style2-levels with mix of 2 Bed/2Bath and 1 Bed/1Bath unitsMid-grade constructionSite info:Flat land, no major grading work is neededUtilities are yet to be connected (the site is in a developed neighborhood with good road access and utilities at curb side)Expansive soil (known for this region)Thanks!

If you could find two flip-and-hold properties a year that met even a 90% cash-out refinance metric, you could build a portfolio of a dozen rentals before you even had to think about where to access more capital.That might be a slower strategy than you hope for, but if you did it that way, you'd definitely have a stable, productive portfolio that would spin off a fair amount of cash-flow.

A proper modern Crawlspace has >= 24” clearance thus all sewer lines are easily accessible. 

Additionally, you can access these funds to expand your real estate portfolio while maintaining a good appreciating asset in the bay area.

Given the uncertainty and the fact that you may invest now or later, a HELOC would be a great option to access the equity when you find the right property.