While Dave Ramsay has helped many folks find their way out of the consumer debt trap, the debt (and work)associated with a cash-flowing business is a different beast and it's a mistake to conflate the two.PS.

I see now that I have made huge mistakes with this house, so please keep criticism constructive.I have a vacation rental which I co-own with a family member.

Get the information from them, and then verify it with an architect or local planner.The reason we suggest that approach is it become, "Worst Case Scenario". 

Well, even in the worst markets, deals are still happening.

I would say you have at least a moral obligation to the community to prevent an attractive nuisance at best and a serious degradation of the neighborhood at worst.

However I realize this is temporary and holding in place- preparing for the worst but truly hoping for the best.

I did a number of seller finance purchases around the 2008 crash, just be careful not to over-leverage yourself and don't do close balloons (5 years + I would recommend).The worst position you can put yourself into is nearly 100% financing, a 3 year balloon,  and rapidly dropping prices (like 2008).  

I am the worlds best at offering exactly what a property is worth and simultaneously the worlds worst investor. 

If you learn from something that bit you... then it is a learning curve or from the school of hard knocks and not failure... unless you make the same mistake again! 

I already provided him a constructive feedback saying he was unethical and manipulative and didn't have my best interest in hard for the past 1 week and hope he understand his mistakes and give clear agreement on how we should work moving forward with terms to terminate the contact if we disagree on anything in the future.Let me know what you all think.