Greetings

We are finally headed down to the BVI leaving 2/10 and returning 2/22. We are flying AA through SJU. We have SJU to EIS via Cape Air outbound. On the return we have Seaborne from EIS to SJU - AA all other segments.

Questions:
Do you have to change terminals in SJU? (map seems to show No)
If we check bags in SEA do we have to go to baggage claim in SJU and go back through security? I did book the entire ticket through AA.com so it is all one ticket, if that helps.
How about on the return with Seaborne, can we check bags in EIS and trust they make it to SEA?

We have @1.5 Hours of layover time in SJU both ways. Should be enough?

Sorry for all the questions. I have not flown into EIS before so this is new territory and wanted to get an idea of what the experience will be!

Thanks
Will