I'm sincere and ready to go on a rational deal that can get funded and close and meets my goal which is a priority on income.Thoughts?

I realize you are upset about a number of things, let me acknowledge that emotion first before attempting to rationalize a bit. 

I'm really intrigued by what you're talking about with Central America, although like any rational investor while I am curious I'm incredibly cautious considering the political, criminal, and economic state of many of those countries.

It's not about you though, it's the motive and rationalization of the alleged perpetrator at that exact moment that is at issue.There's a lot to be said for cultivating and maintaining the very best tenants possible, as you would your team of contractors, agents, attorney, CPA, lenders... 

I run the cash/cash backwards to determine it the listing price is rational. 

I am looking to potentially form an LLC in the future with Friends and/or family or by myself, and my question is how will that:1. effect my DTI ration?

Just don't rationalize lifestyle inflation with the extra money.

If they are rational, which they are not always, they would let every property go at the sheriff sale for that same 30-40% los, but they do not. 

So, stay calm and rational  but   be prepared to beat the bushes to find the right deal.  

Their rational was that the only person benefiting from a further contribution were the beneficiaries of the IRA and that it should not create a prohibited transaction.