I have converted to Islam and so have only non-muslim family. My parents are both dead.
You may make Du’aa of Hidaayat (divine guidance) for your non-Muslim living relatives.
However, you may not make Du’aa for your deceased non-Muslim relatives. This is the command of Allah.
and Allah Ta’ala Knows Best
Mufti Muhammad Kadwa
CHECKED AND APPROVED: Mufti Ebrahim Desai