As you can probably tell, networking is one of my primary methods of learning about the market here.I think I might stick to more of what the other options were, also mentioned by @David Fernandez and @Michael Garofalo.

Instead of just traditional homes and condos, I want to venture into the unique world of Airstreams, Tiny Homes, Shipping Containers, Treehouses. 

I was curious if anyone here knows or has good luck with getting a second mortgage on a primary residence in the state of California?

I personally have multiple plans-401k, multiple Roth and traditional IRAs, HSA, and several CESAs.

I was curious if anyone here knows or has good luck with getting a second mortgage on a primary residence in the bay area?

Roper's life: he appeared to live comfortably by renting out a series of apartments and even managed to sell that statement complex and buy a house and live without a traditional job.

So my parents have a rental property that they have been renting for the past 10 years, it was their primary residence for 12 years prior to renting.

Tax on the income is either deferred (Traditional IRA) or eliminated (Roth IRA).Rental real estate is an example of a type of real estate investment that can be a tax shelter on its own.

My wife and I have 2 properties with 4 units(one is our primary residence... ). 2 units are long term rentals and one is an Airbnb.

for your primary residence?