Purpose of involvement of an impartial legal expert is primarily to protect the interests of the parties, to prevent subsequent disputes, to facilitate proof, to reduce the possibility of abuse, to protect third parties and the entire legal transactions. The parties to the notarial record, within the limits of the law, decide for themselves the extent of their rights and obligations, and freely choose the provisions to which they wish to be bound. A notary must never unilaterally determine the contents of a notarial deed without first finding that there is agreement from all participants. The condition for notary intervention is a previous consent of the parties, on the basis of all explanations given about the consequences of a particular transaction. For all these reasons, the notary's involvement in family matters, which are among the most sensitive, plays a very important role. The thesis presents the strengthened tasks of notaries, defined in the new regulation of the Family Code, which became effective on April 15 2019, replacing the Marriage and Family Relations Act. The changes were urgently needed, as they eliminated many outdated institutes and brought fresh solutions into family law that will speed up and facilitate a lot of procedures.