Town of Lubec seal.LUBEC — A fishermen’s safety advocate who lost her 18‑year‑old nephew in a commercial fishing accident is asking Lubec to help build a model for how coastal communities respond to disasters at sea. Liz Michaud, president of the safety advocacy organization Green and White Hope, presented her proposal Wednesday night to the Lubec Board of Selectmen. She asked the board to consider partnering with her group on an effort to forma…