The land contract is defined by you the buyer and the seller.

Could you please define the difference between this too different types?

I think you need to define your expectations first.

I am not worried about robots replacing humans since advancing technology always seems to create as many problems as it solves, and while AI can solve problems whose parameters are well known, I don't think it will be able to solve new problems where the parameters still need to be discovered and defined.

Define what it is what you want to do otherwise it will be almost impossible to know who should be on your team.But, hey, just one opinion from an out-of-state investor sitting behind his iPhone in California! 

Just as a business benefits from defining their Mission, Vision and Values, so does a family.

What precisely defines those criteria is based on individual facts and circumstances, as indicated by the courts and IRS.  

can someone please define the BP use of scale and cap. 

Typically billboards require a state and/or local permit and there are usually defined spacing requirements (how far away you have to be from another billboard) as well as zoning requirements that are the largest hurdles to putting in a new billboard.

To answer your question from 2 months ago, you have to define "better".