Signed into law in 2021, SB 9 is designed to address the housing crisis by allowing greater density in residential neighborhoods.

You have to sign an agreement that you will come up with the cash if the property appraises up to 10k below the purchase price. 

We do a pretty good deal of site selection with data behind it and use experian as a data source. 

If you're living in it now, you'll probably be required to have a signed lease in place as well as proof that first month's rent/security deposit were collected in order to get a DSCR loan (they're business purpose loans and don't allow owner occupancy).

They agreed and we have signed a lease for the total rent of $3100.

While not all lenders who do private money are licensed, if they are that is a good sign.

If it's an Airbnb booking, are you having them sign a lease agreement in order for them to get a permit?

And that is always a tell tale sign to me. 

How would I go about finding a sober living operator that could sign for a lease?

Not many signs for rent in yards.