living aboard year-round in the northeast USA

[propersalt]

We've been living aboard our boat for about two years in Northern California and are now moving (sailing) to the Northeast USA. We'd like to continue living aboard despite the cold winters etc. We aren't sure where exactly we're heading--Portland Maine, Boston, Providence, New York, and even D.C. are all on the table. We'll make a decision based on job offers and where it looks like we'll have a good quality of life.

I've read that Constitution Marina in Boston is the best / only year round live-aboard spot in that city. True? False? Any other suggestions re: good year-round live-aboard marinas in the northeast?

Thank you!