There are third-party admin people that can help you set up and administer your solo 401k for a relatively inexpensive fee it's about $300 a year I currently use one company to do the same for my self-directed Roth IRA.I'm looking to go with the 401 option because I can do a 100% contribution up to $20,500 now.that's just a little over my net in one month on my rentals.

*You can only have one FHA loan at a timeI'd consult with a lender or two to give you a much deeper scope of your loan options and what makes the most sense.I am not a lender.

@Sarah Kensinger agree, I am just exploring different options and weighing the pro/cons. 

Some brokers only concentrate in condos, others only do multi-family.

If you were wanting another property within the next 6 months after selling her condo this could be a good option. 

-Multi family BRRR (may be best for scaling and appreciation in the bay area?)

I have a property that I would like to change from a SFR to a Multi-family in an R-8 zone.

You have 3 options for Property Management - Suncadia, a local PM or do it yourself. #1.  

I'm a Real Estate Developer specializing in Commercial mixed-use and Residential multi-family properties.

Definitely open to both options