The subject of the expertise covers the issue of marriage in notary law. The presented study was devoted to the issue of the impact of marriage on the practice of the profession of a notary in the Polish legal system. Remaining married by a notary causes that, according to Article 84 of the Law – Law on Notaries, a notary is prohibited from performing notarial acts that „concern” his or her spouse. As part of her expert opinion, Dr. Agnieszka Kawałko analyzes the exclusion of a notary from performing notarial activities, in a situation where the activity concerns the notary’s spouse and in a situation where the notary’s spouse is a member of the bodies of the legal entity that performs the notarial activity.