Dear Prudence Help! I Wrote to Prudie for Advice and Laura Helmuth Answered. The workplace advice columnist answers your questions. Photo illustration by Slate. Photo courtesy Laura Helmuth. This special edition is part of our  Guest Prudie   series, where we ask smart, thoughtful people to step in as Prudie for the day and give you advice. Laura Helmuth is a columnist for Slate’s Good Job advice column about workplace issues and a freelance consultant, editor, and writer. We asked Helmuth to weigh in on unemployed friends, property disputes, and apologies: Dear Prudence, My husband, “Kenny,” and I have been very close friends with “Ron” and “Stacy” for over a decade and often say they’re more like our cousins than just friends. We vacation together every year, and their parents usually invite us over for holidays as our families live far away.…