I am an investor in CO and we're doing a garage conversion including the room above the garage and that is looking like it's going to be 150k but that is for about 800 sq ft including some foundation work, adding a full bath, laundry hook up, and kitchentte. 90-100 seems high for 330 ft to me but that may be CA prices! 

Secondly, I would say stay away from your own state because CA is very hard to cash flow on rentals. 

I’m looking at investing outside of California; mainly Kansas.

Talk to my guy Novation king.

I would be wary of buying a home in a residential neighborhood in ABQ with the goal of having a STR: Only CA rivals NM in terms of economic governmental tampering.

I came across a fantastic article on the top US Road trips and unsurprisingly The Oregon Coast took the top spot :) Top 7 Scenic US Coastal Road Trips:- Oregon - Pacific Coast- California - Pacific Coast- Maine - Route 1 - North Carolina - Outer Banks- Alabama - Connection By Way- North Florida - A1A - Florida Keys - A1AI might move The Keys up this list a little..but the entire Oregon Coast is breathtaking. 

California has had statewide ADU laws since 2019.

Equity is King!

In California, if I want to sell my share of an inherited home to a family member through owner financing, is it possible to charge zero interest, say through a ten year pay back period or is there a minimum interest rate requirement? 

I've putting my money into public markets and HYSA but once rates drop I need to re-think the HYSA.Other investors I know are doing STRs in California and OOS, partially because of the IRS loophole with STRs and being about to offset active income, some MTRs (renting out to people displaced for insurance reasons such as a fire, other reasons, not so much travel nurses like during COVID), buying an apartment complex together with 3 to 4 people, working in the real estate industry (acquisition, property management, lending, becoming an agent, etc).