1- If she is unable to continue living there, she can move out.
2- This is possible but this depends on whether the deceased has a real brother or not.

1. A woman whom her husband had died, living in a her late husband rental flat, can she vacate the flat at her own will and look for a cheaper option during the Edha Period to minimise the rental issues? 2. Can a half brother’s or sisters inherit one another? (Of the same father but of two separate women) Please advice