I have a close relative who has left Islam, and I am concerned that maintaining contact may imply my acceptance of their beliefs. Should I continue to engage with them?
1. You should never show him or make him feel that what he has committed is accepted by you.
2. Keep a low profile level with him to be able to advise him now and in the future.
3. Ask him to open his mind to debate and try to send him some useful notes and questions regarding faith and life and hereafter etc.
Wassalam.