<p>One difference between Profile and FAFSA is that the Profile has a non-custodial parent form which IM schools almost always require be completed by the non-custodial parent. OP, the Profile will, in your case, ask for the mom's information and for your brother's information on the main Profile form. </p>
<p>Not to confuse the issue, but 568 schools will look at only two parents' income. Any chance your niece will look at any of these schools? </p>
<p>568 Presidents' Group Member Institutions
Amherst College
Boston College
Brown University
Claremont-McKenna College
Columbia University
Cornell University
Dartmouth College
Davidson College
Duke University
Emory University
Georgetown University
Grinnell College
Haverford College
Massachusetts Institute of Technology
Middlebury College
Northwestern University
Pomona College
Rice University
Swarthmore College
University of Chicago
University of Notre Dame
University of Pennsylvania
Vanderbilt University
Wake Forest University
Wellesley College
Wesleyan University
Williams College
Yale University</p>
<p>I am a remarried parent of a kid who goes to Brown. Prior to his freshman year, Brown asked for my information, my new husband's information, and my son's father's information. However, they apparently just used my information and my husband's, and this year they did not ask for my ex's at all. They do reserve the right to look at it if they wish, but as a member of the 568 President's Group, they use the income/assets of only two parents.</p>