I own multiple SFHs as rental property.  I purchased a 4k sqft investment home that is built perfectly for a multi home layout with some renovation.Must i have the home rezoned?  Or can i have 2 different power meters...

Once you are on site you can decide if your $20K should be used as a downpayment on a double to house hack (to stop renting), a single to just stop renting, or a single to lease out.

Thus, I have worked 2 jobs (1  is self employment) for 7 years to fund purchasing a few single family homes locally. 20k is not enough to purchase IMO, that should be your savings AFTER your purchase.

Based on a single interaction doesn't always tell you if it is good.

IF the City does not limit to four total, there is a scenario where the City MAY allow up to 10 total units on single family zoned parcel

Quote from @Alan Asriants: There has been a growing trend recently of individuals looking to house hack single-family homes.

I'm not into Sub2. there is no personal liability protection in a single member LLC.. there is protection if you have unrelated members in your LLC . 

Purchase price: $80,000 Cash invested: $80,000 Single-family residence in Las Vegas.

We specialize in single family homes, condos, townhouses, and select small multi family homes.

Duplexes are generally valued lower than a single family.