Personal and thru 2 business entities.  

Then have an attorney assist in drafting the needed documents & agreements.My personal preference has been to have one person hold title & the other hold a recorded option or lien position depending on their roles & needs. 

These builders & flippers, etc are risking their money daily (Plans aligned, calculated) in order to grow personally, mentally, & physically.

you need all 3 of those. no offense but just to be direct - it sounds like you may not be ready to make offers.are you looking at properties in person? 

For insurance relocation reservations I still get a full application (with background and credit check) for each person over 18.

The biggest draws for investors are not needing to provide income docs (no W2, tax return, paystubs etc needed), DTI doesn’t matter, you can close in an LLC, and not all lenders report the debt to your personal credit (so it doesn’t affect your credit score or DTI for future conventional financing).

Personally I invest in stocks, mutual funds, moneys in high yield savings account, dabbled in digital currency and but primarily real estate.

Speaking from personal experience, I have several STR rentals in California (I co-own STRental Pros in Orange County, Los Angeles County, and Riverside County).

Or if there is a 10 unit made up of two buildings, or two 'sides', I'll let an STR person take one side/building/chunk.In Montrose I have a 10 unit that's made up of a 6 and 4 unit building. 

My advice (based on my own personal experience with investing in the Columbus, Ohio market) is to secure the asset even if it's not bringing in as much as you desire (within your finanial means of course) because today is the cheapest that property will ever be.