Maine--looking for input

[Emily Martin]

We are interested in purchasing a single family home on the coast between Portland area and Desert Island area to use as a vacation home/possible future retirement spot for our family and to Airbnb/VRBO when we are not present.  We live out of state so are not super familiar with the area yet and would appreciate input on locales which are likely to have the best opportunity for vacation rental income.  Any local insights would be appreciated!