Negotiation options and how they work
Suppose there is a property that a company wants to acquire.  The negotiation options that I'm aware of are

*outright sale (downpayment, annual payment, or combination)

*shares in the company, i.e. partnership

*lease

*some combination of the above

What I'm looking for are specific examples of deals made between seller and buyer ,e.g. $X downpayment + $Y in shares.  You obviously don't need to give specific amounts, just how deals were configured and how beneficial they were to the buyer v. seller.  

Also, how do you decide what amounts to negotiate besides looking at historical rates?  Is it really just a guess as to how valuable the property is to either party?

I am not sure what terminology to use to describe the questions above, so I was not able to find similar postings.  If the title does not describe my question well, please explain why not, as the proper terminology/jargon will help me locate further resources.
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