Reply To: Yehareig V'al Yaavor?

I personally brought a Shailah to two prominent Poskim regarding someone whose mother was adopted and then became Frum. He wanted to know if he had to avoid his non-Frum grandmother’s hug. R’ Moshe Shternbuch SHLIT”A Paskened that it was Yehareg v’Al Ya’avor. R’ Dovid Feinstein SHLIT”A Paskened (in the name of his father, I believe) that it was Mutar l’Chatchilah.