It's getting more difficult for anyone to afford a house.

I want to scale, but currently I can only afford to buy 1 (maybe 2) properties / year.

You have to look at every facet of real estate and be ready to make a very quick decision when you are investing tens of thousands of dollars.

WAY overpriced, over developed, Insurance through the roof, condos are collapsing, in price, owners cant afford the assessments you want more LOL 

They are all Voucher affordable housing homes.

Then I'd be using borrowed money to pay down debt I could not afford with no cashflow from a rental. 

If so, what is your budget because that affects what neighborhood or city can afford which affects the type of tenants you would ultimately appeal to. 

Besides, if you can't afford stamps, you can't afford a multi family property.

Additional fees may apply depending on the number of days the property is rented.Personal Property Tax: Starting in 2024, California requires some STR owners to report the value of personal property used in the rental (such as furnishings) for taxation purposes.Potential 15% Statewide STR Tax: A new bill (SB 584) may introduce an additional 15% state tax on STRs starting in 2025, on top of local TOT, aimed at addressing California’s housing affordability crisis​(

On wholesaling that is just transactional real estate with income that is taxed at the highest level and to be successful at it one needs partners or access to pretty decent amount of start up money to afford the marketing it takes to get your leads.