The US and Canada
only allow one passport and it's to be issued from the country where you reside. My wife has 3 citizinships but resides in the US and so has to use the US passport. If we were to move to Canada she would have to surrender it as soon as she found work or when it expired, which ever came first.
Same with drivers license's.
I would re-document the boat in the US, if that's where you plan to stay. The US border patrol would have a hay day with that.............._/)