You will have a difficult time selling the park with the house attached down the road even after you fill it up and improve the CAP.And a second word of caution since I am sitting here spewing advice... those two vacant TOH homes depending on condition and the 6 vacant spaces should have zero value in establishing the park's value. 

Until you establish a relationship with a GC, it may be hard for them to come give you an estimate every time you want to estimate a deal. 

I know regulations change almost by the quarter so what is true now is probably different last year. 

Be sure to check local regulations regarding short-term rentals as well.

I get that there are regulations by the municipal, but are they so strict that certain builds aren't allowed throughout a whole state?

Short term regulations are becoming more and more restrictive here so we are looking to purchase outside LA County and invest in Riverside, Ventura and/or San Diego county.

Having a pre-approval or at least an established relationship with a lender shows sellers that you're serious and can close quickly, which can make your offer more attractive.

I am currently seeking funding and establishing partnerships with agents who are knowledgeable in alternative financing and real estate investment strategies.

Lender options vary by state due to state regulations- these type of programs are available in many states. 

Additionally, be aware of any specific requirements or regulations related to accepting vouchers in your area.