Do you sell / buy real estate in Mexico personally? 

Also, personalized post card size info/thank you card with the top 5 restaurant/bars or attractions in the area.

What stage in life and in investing are you are questions I think you should ask yourself to get a clear picture.

I let the booking expire and figured it was a troll.I then get another request from the same person about a month later for the same dates.

Figure out which best fits you and your personality and take it from there.  

It sounds like this is their personal residence.

With that being said, I personally know several people who've had tenants that stop paying their rent and try to hang around for as long as possible. 

i'd pick a market close by, or that you have a personal connection to, or that you visit often.chasing cash flow by itself can lead to negative outcomes - for example, these investors bought in supposed "cash flow" markets:https://www.biggerpockets.com/forums/12/topics/1215726-break...https://www.biggerpockets.com/forums/963/topics/1195280-expe...https://www.biggerpockets.com/forums/48/topics/1137397-balti...hope this helps.

This could be a single person who has their brokers license or a larger brokerage like Keller Williams.

As a disabled person, I want to be in real estate, but I know I am limited.