<p>So FAFSA instructs to fill out info about the parent you lived with most during the year or who provided the most financial support. For us, that would be mom in both cases. It then goes on to ask mother's and father's name, SSN, date of birth, etc. Are we to leave dad's info blank because he isn't the custodial parent?</p>
<p>Yes-- leave dad's info blank. They only want the info on the custodial parent here.</p>
<p>If mom has remarried, stepfather's income is required.</p>