Superiors in the conferral of offices and members in elections are to observe the norms of universal and proper law, are to abstain from any abuse or partiality, and are to appoint or elect those whom they know in the Lord to be truly worthy and suitable, having nothing before their eyes but God and the good of the institute. Moreover, in elections they are to avoid any procurement of votes, either directly or indirectly, whether for themselves or for others.
Source: Code of Canon Law (Vatican.va)