Q. I am learning about money management from a secular book. It suggests leaving the house to your  children from the first  marriage. What does Jewish law say about this if you’re in a second marriage? It doesn’t seem right for your kids to kick him out, but what if they need the money?
A. Horav Shlomo Miller’s Shlit’a opinion is that in principle in Halacha. there would not be any significant difference between the offspring of the first or second marriage. However, there are likely other significant issues involved, that can be decisive and may also be complicated, therefore all details should be carefully considered.
The Rov’s usual opinion is that cases that involve monies or properties that different parties have a claim to, should be decided by a Beis Din or Rov that can hear properly and clearly the claims and details of each party.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a