Step 1.
Riverside county parcel owner mailing address is free. No contract no fee.
They told me they disable the public free access since.
They remove owner info from free download dataset since.
You have to email the gis lady at the time for that.
Step 2.
San Bernadino county owner mailing address is not free,
you have to sign contract with county and pay about $50 each month.
Step 3.
Orange county owner mailing address,
I get it from corelogic by paying annual fee. I am not sure how much is it at the time.
Step 4.
Los Angeles County parcel owner mailing address isn't free.
It is about $50 for county wide parcel owner each month.
https://assessor.lacounty.gov/real-estate-toolkit/data-sales
Step 5.
street name is parcel physical address,
M street name is owner's mailing address.
For example this owner does not living on his house,
owner's mailling address is different than house address.
Step 6.
owner name
Step 7.
situs address is house physical address
owner may not live in situs address,
that is why mailing address may different from situs address
Step 8.
Step 9.
Step 10.
Step 11.
Step 12.
Step 13.
Step 14.
Step 15.
Step 16.
Step 17.
Step 18.
Step 19.
Step 20.
Step 21.
Step 22.
Step 23.
Step 24.
Step 25.
Step 26.
Step 27.
Step 28.
Step 29.