lien

OBS: Un lien privé est créé entre le requérant et ...

OBS: nexus is the law's learned word for connection or multiple connections. There is nothing wrong, however, with using it. E.g., ""The defendant's nexus with this country and with this district is not accidental"".
PHR: nexus: To bring the applicant into a private nexus with
OBS: nexus: Term reproduced from the Glosario Provisional de Términos Jurídicos with the permission of the United Nations Office at Geneva.

OBS: nexo y vínculo: Términos reproducidos del Glosario Provisional de Términos Jurídicos con la autorización de la Oficina de las Naciones Unidas en Ginebra.