It’s official, apparently, if the sign outside Fair Haven Borough Hall has the weight of officialdom. The expected resignation of Mike Halfacre as the borough’s mayor, that is, to take a job in the Christie Administration. But neither the borough administrator nor the clerk was available Wednesday morning to say if Halfacre had submitted a formal resignation, and Halfacre did not immediately respond to a request for comment. [Update, 10:35 a.m.:¬†Borough Administrator Theresa Casagrande confirms that Halfacre submitted his resignation letter Tuesday, effective immediately.] (Click to enlarge)