Seeking any information about living in/around Cancun

You should take the bus about 75 minutes south of Cancun and check out Playa del Carmen and then another 75 minutes south of there and see Tulum.  I havent been to Cancun except at the airport but everyone talks about how dangerous it is.  Playa del Carmen is where you catch the ferry to Cozamel.

I am from Canada living in the Yucatan. I have lived in Quintana Roo and now live in Merida area. You will find many expats here in both areas. Most however are in Riviera Maya (QR)
You should also check out Merida area as QR is very touristy and expensive. Merida is a beautiful city close to the beaches that is full of history & culture with many things to see and do. If you are into the arts, architecture, gastronomy with less tourists you will enjoy it. The downtown is simply beautiful to walk around and explore.
It is a much more laid back peaceful area.

In fact most of our clients we deal with have been and done Riviera Maya and they prefer to retire in Yucatan state (Merida area) for many reasons