1. wife can sell only her undivided share
2. for selling the husband's share, she will need letters of administration from the court
3. if its a flat, then no one will be interested in buying half share
4. if its a plot, then buyers will be there to buy 1/2 undivided share in plot and become co-owner
5. wife should obtain letters of administration from court to enable to sell husband's share.
6. after husband's demise, the property will go to his widow and children. All legal heirs will have to give their consent for grant of letters of administration to the wife
7. wife also has a share in the husband's 50% share as a legal heir