I just thought that maybe keeping my house & collecting rent would be a great way to have a steady stream of ongoing income & still allow my daughter to continue renting (and hopefully someday owning) my house.

The 12 cap parks would be for smaller, more rural parks, or parks that are less attractive.An RV specialist can tell you more about RV cap rates, but usually I see listings starting around 8 or 9% caps.The annual contract income streams are valued differently than the transient (short term stays). 

A lot of time, energy, blood, sweat and tears have been shed but we survived.  

If so, what is the current owner's history with that revenue stream?

While my immediate goal is to acquire one property, I would eventually like to expand my property portfolio and create a solid passive cash flow stream for the long run. 

Hoping to wife off her W-2 job sometime next year when the new stream of income exceeds her salary.

Ground lease is typically when a land owner wants an income stream but does not want to sell.

It also provides a death benefit for efficient wealth transfer.It's a powerful SAVINGS vehicle, not an investment.The key is to have as part of your strategy is efficiency for your savings and asset positioning and getting efficient income streams.

I've used sites like Prop Stream for leads in the past, but I do not have confidence in the quality of their information. 

The direct sales side of the Renatus opportunity is a great additional income stream that helps people get started faster and dovetails your mission rather effectively should you decide to implement it.