You can find cheaper options on some other stuff, but I hope this gives you some Insite as to what money can buy these days. 

I can run some numbers and share some options on the financing side if you like.

You should have some options! 

If you use the Heloc option and decide to rent it out, don't forget that property (or you) will have to cover both your primary and secondary position notes.I don't personally see Marin being a great mid term market.

Feel free to PM me if you'd like to talk options.

For this reason, I would take inventory of the local banks within your target markets that offer financing options that best serve your real estate needs (again, usually the smaller local banks), and build depository relationships with them.

They can sometimes be more open to funding niche investments like mobile home parks, especially when you’ve got proven cash flow and a solid plan.Another option could be talking to your uncle about seller financing.

Most owners who do it want to keep the option of having the building vacant when they eventually sell the place since vacant places sell much more easily then tenant-occupied ones if it's a rent controlled building.

When I asked my agent about options to back out, he didn’t really offer any advice.

Another option would be working with private lenders to see if they're open to your idea should you need additional funding.