IE is it just effectively a secured parking lot that renters can come and go as they please with minimal oversight? 

You're effectively buying a package of 3 properties.

Snowball -     Where if I were to payoff a single home with this "extra" money it would increase my cashflow by 8500/yr (but I also lose bank principle pay of 2000/year) so the effective added cash flow is ~6500yr.By the time I add Principal paydown and "slight" appreciation the add homes method seems to be the clear choice.        *** I would love to hear your comments on a debate in favor of the snowball.**** At some point, future, I think I will want most all properties paid off so I can have great flow with minimal stress and maintenance numbers but kinda feel growth phase is still smartest as of now. 

Besides traditional real estate channels, where else can I market my land effectively?

I have been seeing a lot of information regarding how to buy over previous business”s and would like to expand my knowledge on how to most effectively do this.

How is the effective gross income calculated?

I haven't seen a ton of reductions yet...but inventory is slowly starting to creep up which will definitely have an effect.

I have a series LLC for my rental properties in Utah, but I am not sure how effective it would be for holding a property out of state.2 - I do subject to deals in Utah using a General Warranty deed.

Even a little bit of staging can have a huge effect. 

I can create an effective Calling Script and Schedule Appointments with the homeowners.