Is the sin of usury incurred by the accountant who records interest for his company, or are his work and earnings permissible, and what is the validity of the fatwas that permit this?

If the suitor is righteous and you feel accepting of him, there is no impediment to rejecting him because of his work as an accountant, since the work of an accountant is not limited to usurious transactions but also includes companies and institutions with permissible activities. The work of an accountant in entities that deal with usury is not forbidden, unless he directly engages in usurious transactions himself, as Sheikh Ibn Uthaymeen fatwaed. And if his work is limited to recording usurious interests after their contracts are concluded to manage the company’s funds, and not participating in authenticating the contracts, then there is no sin upon him.