I would say that a 1.20x DSCR ratio minimum for BRRRR is a bit high - plenty of options out there that wouldn't require such a hurdle

If the property is tenant occupied, you should require your tenants to have renters policies and lastly and just as important as the insurance you obtain is knowing all vendors you rely upon to perform work at the property and on your behalf are properly insured.

Creditors and lenders are not required by law to report to credit bureaus.

I have a full time job that pays around 170k excluding stock options (which I would like to retain as a separate investment for now but I am open to use that for real estate if required).

You'll likely want to start with reviewing the requirements under Prop 19 for retention of the base assessed value when adding a child to title, and also look up the rules for a basis step-up at death. 

What documents would you require before you contributed funds in any amount?

Also Zelle doesn't allow for the ability to individually enable/disable a tenant in the system.Money orders require driving over to pick up, or the tenant sending them late and then the late fee issue is still there. 

I would base this on your numbers, not sellers (seller financials are one of the biggest jokes of this industry), and your return requirements.

I read that folks were having a tough time finding someone to insure a property into a land trust.

The original plan was to live in one unit (as requird by the loan terms) for one year and rent out the other, then move & rent both units after the 1 year requirement (currently living with relatives).