If you are in an appreciation market, and you have a good cash position, it might be good to alleviate the seller of their headache, but at a substantially lower purchase price.

Too much gun play from the drug cartels put people's lives in danger.   

Your ask of low price point with high cash value could be a D-class neighborhood and drug dealers might be your most significant competition.

Plus, the most popular investment destination, Medellin, isn't by the beach.Many people still think about Pablo Escobar and the drug wars, as well as the FARC guerrilla when they think about Colombia.

Going over to the Tamaulipas state might be tricky given how rough it is, but it's got great location, and if we ever get a more common sense drug policy, and things calm down there, it'll be worth much more.  

From what is described in your post, Checkbook control/ IRA LLC would help alleviate the pain points you mentioned. 

My understanding with the Series LLC is it alleviates the need to get a bank account for each sub-LLC and basically going through the complete process of forming a LLC.Oh, and Siddiqi's idea still works with a LLC. 

The portfolio was performing with all the tenants but one paying rent, which alleviated risk.

What do you do if, for example, the government or local drug cartel decides that it no longer wants foreigners investing in Real Estate and seizes the property or starts extorting fees and bribes?

I'd love to know what kind of drugs these people are on who not only take demo debris for free, but they even come pick it up.