Some of you may recall that my Ranger 33 sailboat was damaged in a windstorm. I got a settlement from the insurance company but they left the boat with me. I found a guy interested in a lot of parts from it since he owned a Ranger 33 missing lots of parts including the sails. I gave him a good price on the whole boat with the understanding that he would be responsible for disposing of the boat. I transferred the registration to him,gave him a bill of sale (no titles in NY). I then sent a check to the marina for my final storage payment (the amount on the last bill the marina had sent me) and informed them there was a new owner.
Apparently, the new owner removed what he wanted from the boat and then sent a letter to the marina giving them title (?) to the boat, or the right to dispose of it or something.
I know this because I just got a letter from the marina owner's attorney stating that I am still responsible for storage costs and disposal of the boat since it is still in their yard and that he will initiate action against me if I don't pay storage and disposal charges
I'm think the letter is probably just bluster. But, I'm not familiar with marina storage laws in NY state. Since I am no longer the legal owner of the boat, I don't see how I can be responsible for any costs. If he wants to go after someone it is the person to whom I sold the boat.
What are people's opinions on this matter?

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13