He's seen me grow to four units (3 properties) and I'm thinking, there's gotta be a guide or book that would help him just follow step-by-step how to rent out his existing property and buy a new one.

The positive is you can get them out with 60 day notice so 60 day escrow would allow the unit to be delivered vacant (assuming zero issues terminating the rental)good luck 

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HVAC unit is package unit on right side of the unit.

Now that the unit is finished, it's going to be listed for $2,450/month and the same model on similar lots are appraising for $410k.

The latest purchase of the 3 family is a little different in that we will be living in one unit and there are two long term tenants already in place.

Trying to convert a basement into a separate unit.

Not really common in the 1-4 unit residential space. 

Hi, Working FT and finished renovations on a 2 unit home.

So the unit cannot have any known health and safety issues.For years there have been areas that ignored unpemitted units before sb13.