start here
Your number of family members 2018-2019 (household size)
To determine your household size, include:
yourself (and if married, your spouse);
the number of children (even if they do not live with you) who will receive more than **half of their support** from you (and if married, your spouse) between July 1, 2018 and June 30, 2019. You may include any unborn children if they will be born during the school year; and
the number of people (not your children or spouse) who live with you and receive more than half of their support from you, and will continue to receive more than half of their support from you between July 1, 2018 and June 30, 2019.
https://fafsa.ed.gov/fotw1819/help/snumOfFamily.htm
If you click on the link for support it states the following
**Support]
Support includes money, housing, food, clothes, medical and dental care, gifts, loans, **payment of college costs,]/b] etc.https://fafsa.ed.gov/help/ffdef08.htm
Are you paying for law school as part of the 50% financial support you are providing for your professional school child? (your child can borrow up to the full cost of attendance - any financial aid as a Gradplus loan).
If you are not paying for law school as part of your 50% support, the student is not counted as a member of your household.
Parent Number in College
The response indicates the number of people in the student’s parents’ household, including the student, who will be college students between July 1, 2019 and June 30, 2020.
This number includes others only if they will attend at least half-time in 2019-2020 in a program that leads to a college degree or certificate.
This number must include the student that completed the FAFSA, even if the student will attend college less than half-time in 2019-2020.
This number does not include the student’s parents, even if they are enrolled at least half-time in 2019-2020 in a program leading to a degree or certificate.
This number does not include students at a U.S. service academy, because most of their primary educational expenses are paid for by the federal government.
If the student is Dependent, the response cannot be blank.
https://fafsa.ed.gov/fotw1920/help/faahelp54.htm
Your older child already has a college degree is is pursuing a professional degree and is independent for federal aid.