Legally separated and live in basement, I support myself and my dependent son who is in college.
My legally separated spouse lives in upper half of house and supports her 3 children, 2 in college, 1 in high school.
According to one answer I read on here it said two people can live at the same address and both claim HOH if they both are taking care of their own dependents.
This is sticky water and not been able to find a clear answer as we were a blended family and have our own children.