Russia: Under Russian immigration law, foreign nationals must be registered at their place of stay in Russia. The registration is done by so-called hosting/inviting parties by filing a notice to the migration authorities indicating the address of stay of the foreign citizen and certain information about the host.
Up until now, employers have tended to register their foreign employees (and family members, etc.) at the legal address of the company, as the owners of properties where foreign employees actually live are normally reluctant to assist in migration matters for foreigners.
But since 8 July 2018, the law requires foreign nationals to be registered at the address where they actually live. This means that they can only be registered at the address of the employer if they live at that address.