Any advice on how to invest my money in real estate while being the most efficient?

I know I can probably house hack my way to 5 properties in 5 years, but I assume I'll probably learn more efficient and aggressive ways to scoop up more properties as I complete my 2nd-3rd house hack, so that I can start picking up more than 1 property per year.I don't want properties that will take a lot to fix up, I'm fine with cosmetics and do-it-yourself type things.

This is akin to stating the obvious, as DSCR assessments are fundamental in determining the viability of such loans, similar to DTI (Debt-to-Income) ratios for residential mortgages.Your emphasis on the operational efficiency of well-run assisted living facilities highlights that their financial performance typically isn't constrained by DSCR limitations.

Aside from zoning issues, permits, and city/county requirements, which are highly variable, I'd like to get an idea of how many units/buildings and how to lay it out for most efficient use of space for those 2 acres.

Howdy BP, If you were an investor with $2-4M to invest (leveraged against another property at around 6.5%) and looking for the lowest energy and management input but the highest free cash flowing asset, what and where would it be? 

Factor in energy-efficient appliances and construction methods if applicable.Insurance Estimates: Speak with insurance brokers who specialize in property insurance.

Loved your energy.

Mentors for me have come in the form of friendships over time, but honestly, most of them were made at an IN-PERSON MEETUP....there is something about physical energy that makes a huge difference.Happy to connect to share some of my experiences!

Make them based on what your tenants need (not want) which would also allow for them to customize (furniture use) to their tastes.I wrote a book on this a number of years ago that touches on a lot of these things, but it was focused on my specialty, "Energy Efficient, cost effective homes". 

Effective remote management hinges on strong organization, reliable local contacts, and leveraging technology for efficient communication and oversight.