That is why most sophisticated sellers want some down payment so they have money to make their tax payment. 

I'm starting to model some much more sophisticated scenarios of buying investment properties, but before I even got too far into it, I began modeling the impact of inflation on your paycheck and personal expenses.For example, I ran four different scenarios.No inflation on your paycheck and personal expenses: the $5,000 per month you earn is still $5,000 per month 40 years into the future.

@Scott EdwardsI think part of the reason this isn't usually taken into direct account is everybody's tax situation, bracket, etc. is different, so it's very difficult to estimate how owning a particular property will impact their tax liability for the year.With that being said, it's a definite benefit of owning real estate and more sophisticated rental property calculators do show the tax benefits (like depreciation and mortgage interest deductions).

While many agree the accredited status is high, there are reasons for it (namely to protect everyone involved, especially the investor) and the SEC has also allowed non-accredited/sophisticated folks to invest in these types of deals through a different structure - the 506(b).It is 100% okay for you to reach out to Sponsors or other people putting together the deals you're referring to.

The corporation will operate in the taxable realm.This is a sophisticated strategy both to setup and properly maintain, and not something you want to get from a one-man law shop.

You need reliable labor, expensive machinery, a comfy reserve, and farming and farmland are probably one of the least profitable real estate investment strategies... at least from my sights. 

Just excel spreadsheets, or something more sophisticated?

COMPs are much more sophisticated than simple CMAs, COMPs are the best Marketing forecast, done by Marketing economists such as university professors who teach Marketing Economics.With a glance at today’s economy, we can forecast the answer by watch the trend of the first 1-6 point and analyze point  7 and 8:1- Consumer confidence index is it up or down2- Business confidence index is it up or down3- Bond yield is it up or down4- GDP on the rise is it up or down5- The Stock market is climbing or declining6- Interest rate is it up or down7- Quantitative easing: What does that mean?

This will require a sophisticated software (electing to use Appfolio) and well documented processes. 

Your role is to protect your interest.Arrangements like this typically require 3 sophisticated or represented parties.It is possible that 1 attorney could set up a new LLC (or other org) with each current LLC becoming a 1/3 member.