Baltimore has not been mentioned much but has much to offer.
First most of the slips are on floating docks. Given the wind
storms we have had during the past few winters, some prolonged over days, with extreme tides, never having to adjust your dock
lines is a great benefit.
Second the MARC commuter trains to DC. A friend at one marina walks across the street to a bus stop where he pays $1.65 to ride to the train station. (Some marinas
are served by the free "Circulator"). He could then pay $7 to go all the way to Union Station in DC but actually pays less because he has a monthly pass. The trains start very early in the morning and run late at night (Monday to Friday). MARC is doing experiental runs on Saturday now. From Union Station the DC metro system is accessible.
Third, it is a big ship harbor and your draft
and length would be no problem. You can have some good sailing in the harbor and wide, deep river. It is not what you get out of Annapolis
, but nice in its own way. The sailing is different, but coming in for winter and as a liveaboard
the sailing will be a secondary experience - at best - to the living aboard
no matter where you are.
Fourth, it is cheaper than Annapolis
PM me for more specifics on Baltimore marinas if you are interested. Some with no liveaboard policies let them slip during the winter. And then there is some flexibility in the definition.