I have one young lady looking to get started wholesaling meeting me this week, who else is game?

I think your assessor is using 60% LTV interest rate assumptions + ROE + taxes to establish the market cap rate. 

The park was established in 1938 and has never been sold ( been in the same family for generations) so your probably dead on about that one.

I've bought 2 residential lots in established neighborhoods that I'm holding onto.

total waste of your time and effort... only way to work on this is if you have significant equity.you wont get the bank to lower their fee's no way..but if you want to fool with it for practice or just because it could be a good learning experience for you  to realize you cant work with these sitautions this late in the game unless your going to stroke a check ..

My game plan would be, over the next 3-4 years, to purchase, 7-8 properties, putting roughly 50k down on each, and financing the remaining balances, 30 year mortgages.

With Zillow out of the iBuying game, opendoor and offerpad seem to be the two dominate iBuyers here is Vegas.

Your mom should join BP as well... great place for her to meet potential clients and establish herself on here as the go-to realtor in the area.I'd also set up keyword alerts so that you can receive a notification EVERY TIME someone mentions a topic of interest.

There are banks that loan on properties and we did have the property appraised to establish a value.

If you have an established relationship they may be willing to work with you.