I rented out 3 of the bedrooms (upstairs) and lived in the basement which had 2 of the bedrooms, a master bathroom, living room, and private garage access.

Train a regression model using square footage, bathroom count, or more advanced features to predict the price of the sales. 3.

i tiled a kitchen and bathroom once.

I updated the bathrooms, floors, kitchen, Mechanicals, sewer lateral, Paint, doors.

For appealing appraisal, the easiest way is absurd adjustments (and adjustments are often absurd: $10k for a BR when simple query of average 2br vs 3br sold will show value of that extra BR on average, same for bathrooms, etc).  

If I sell, I'd probably look to reinvest it elsewhere (probably out of CA) for combination of cashflow (or break even at least) and appreciation.If I do keep it, the only other way I can think of improving performance is to add another bathroom  (becomes 3 bed/2 bath) or another bed and bath (becomes 4 bed/2 bath).

Would need everything kitchen and bathroom and bedrooms and livingroom sanding to painting and floors.

The garden unit is nice, finished, has a kitchen, and 2 bedrooms+1 bathroom, 2 egresses, stairs connecting it to the unit above as well as an exit to the outside but ceiling height is 6'5". 

Don't blindly rely on the seller's numbers, just in case you are.Built in 1964, this 1,040 sq. ft. home features three bedrooms, one bathroom, and sits on a 0.21-acre lot.

I updated the bathrooms, floors, kitchen, Mechanicals, sewer lateral, Paint, doors.