Getting knowledge from someone with real-world experience is quite beneficial.Make contact with local brokers and real estate representatives.

However, he says he represents hundreds of exclusive buyers.

Especially in syndications, where often those touting # of doors may not even be the primary GP managing the deal and it may represent 1-2% ownership of those doors.

Their fees to do this is you pay them 3% of the ARV on the buy and 3% of the ARV on the sell to them (you have to let them represent you on the buy and sell but when you buy, their commission is still based on the ARV).This might be a great way to learn and make money at the same time. 

Having "squatter rights" for NY residences is like having "shoplifter rights" in our stores.In the article you referenced, they talk about the squatter showing up to court representing himself.

@Mike LambertThat is correct; I am an investor in the Riviera Maya, a licensed realtor (license number in profile), and a partner in a brokerage specializing in representing buyers.

My recommendation is that you also speak with a real estate attorney that regularly represents investors - you need a game plan going forward on how to structure your current and future investments.  

is the agent representing you and the seller?

This makes the claims and litigation process easier because the PM and landlord are represented by the same insurance company.

And almost all of these brokers are representing big name companies like SRS, Marcus & Millichap, Horvarth... etc.