Stepchild rights to property
My mother married to stepfather he owned property before they were married while they were married my stepfathers brother gave them a house and was moved on to his property they both renovated the house which brought up the value of the house then later they purchased an additional 5 acres of land adjacent to my stepfathers land the additional part is under both of there names. My mother is now deceased what could happen to the property that my mom owned before her death and after my stepfather passes he has children and she has children she had no will not sure if the stepfather has a will. What are the children's rights if any.