NESN in and out of market - Retired and live in two locations

Hi, I am retired and live in NH in the summer and SC in the winter, although I'm occasionally at the other house off season for visits, or my family members and I may be in both locations while one or more of us travel.

So, my primary address is SC and I'm a lifelong NESN viewer and am wondering how that'll work on Direct TV Streaming with NESN. 

Can I pick a regional sports network?

Can I change primary locations/address, similar to YouTube TV - as long as you check in to the primary address every 3 months?

This is so confusing trying to get all of the channels that you want streamed on each provider. I have YouTube TV, Philo (because YouTube TV doesn't carry History Channel) and ESPN + so I can watch Bruins & Red Sox.

Any help will be much appreciated!

Thanks