I have purchased 3 STRs personally in the last 18 months and have closed on at least 25 for clients in the past 12 months.  

Market timing, properly acquired property, personal capital available How did you find this deal and how did you negotiate it?

but keep in mind CA has higher taxes and reg fees and I’m not doing more than 1-2 flips (short timeframe flips)  a year and many years do 0 flipsDo most flippers put flips into LLC Or in personal name (sole proprietor)  in CA (where you must pay $800 yearly plus accounting and other fees $300to $600+ yearly to maintain LLC) Pros for personal name-save on taxes accounting.

I am personally working with about 15.

Personally, I just don’t know if it’s worth it.   

Interesting, I bet she is a unique person.

Personally never heard of this scheme or way to set up transactions. 

All 17 or however many sellers want to sell, and we've agreed on terms for seller financing, but the problem is no one cannot get in touch with the last reminding person.

Quote from @Leonard La Rocca III: So is it common to find a conventional loan without meeting the lender in-person?

Call 3 references:  Verify that they work there, or that it is an actual person by asking where they work first, and don't mention who you are until after.