The question I’m trying to ask is (and I’m sure this depends on market) what types of material, upgrades, finishes do you put in your rentals?

Im a custom finish carpenter so im not worried about work too much.Thanks you all in advance for any info and or help !! 

And, make sure they will extend your loan if you don't finish on time. 

Lots as a general rule trade at 25% of the finished homes value.. its a general rule but a 500k home lots normally go for 100 ish. of course that does change a few years ago in some markets you could buy 10k lots and sell 200k houses.. think OKC  TX those areas were new construction is built for a fraction of the price of other markets. were that can be inverse is say in an area like Palo Alto or SF peninsula were you may pay 2 mil for a lot and spent 1 mil on the house and sell for 4 mil  :)  2,500 sq ft maybe smaller. 

Being within a 2 hour drive of San Francisco has me contemplating how the market out here would react if California ever finishes the high speed rail that has been in planning.

Housing prices (SFH, MF, and apartments) all can vary depending on neighborhood class, size/location, time of year you're trying to fill it, quality of finish out, etc.

We are finishing the rehab and I am pumped & ready to move onto another rental but he wants to sell this one and the one that I had prior to marriage and be done.

Shortly after the road was completed, my property with a finished basement that was used as legal bedrooms flooded 3 inches deep, 3 times during very heavy rain falls in one summer. 

Purchase price: $102,000 Cash invested: $20,400Typical of what we buy. 3 bedroom 1and half bath partially finished basement, 2 car garage in basement.What made you interested in investing in this type of deal?

Empty the boxes in their new apartment, rinse and repeat until finished.