am i being too harsh or not enough?

Judah • He/him

my abuser is part of my family, and though no one else in my generation in the family has come forward about anything happening, i dont want him around my child or for him to be legally acknowledged as her great-grandfather. I dont ever want him to even be in the same room as my baby. how do i do this without making the whole family awkward? they dont know about anything he's done to me.