Any owner, and/or the holder of a mortgage of an Owner, (the "Mortgagee") shall have the right to enforce, by proceedings at law or in equity, all restrictions, conditions, covenants, and reservations, now or hereafter imposed by the provisions of this Declaration or any amendment therto, including the right to prevent the violation of any such restrictions, conditions, covenants, or reservations and the right to recover damages or other dues for such violation. Any Owner shall also have the right to enforce, by proceedings at law or in equity the provisions of this Declaration and any amendments thereto
Basically you can pursue resolution to the issue with legal proceedings... I intend to do this if not resolved by Feb 26.
I have attempted to speak with this neighbor several times without success in contact.
I'm really surprised city code enforcement hasn't done something under the city code that prohibits parking of any vehicle in one spot on the street for more than 72 hours at a time. And any type of trailer has to be attached to a pulling vehicle for any length of street parking anyway. So this boat under city code has to be attached to a vehicle the entire time it's parked on the street, and it can't be there for more than 72 hours at a stretch.
Have you actually talked to someone at code enforcement? My experience with them has been prompt and efficient.