Why choose a certified matrimonial lawyer? For all matters of family law, a certified matrimonial attorney will provide the knowledge and expertise you need when sensitive matters come to an impasse. Not all matrimonial attorneys are certified. When the Supreme Court of New Jersey certifies an attorney in matrimonial law, it means that the attorney has been carefully screened, fulfilled ongoing legal education requirements, been favorably evaluated by his or her peers and judges familiar with the person's work, and has taken and passed a matrimonial law examination.