You need to be well organized in any appeal.
High income-- that can be a factor if the year in question was an unusual year earnings wise. So the sale of a business which showed a high taxable income vs. the past 5 years, and is unlikely to repeat itself? A “one time only” bonus due to a payout of some sort? A company which did not pay any bonus during the covid years but for last year paid out what was essentially accrued income, distorting the taxable income vs. the history? Any of these can be a factor but you need to document. Your family just makes a lot of money? Typically not a factor.
Siblings in professional school? Probably not. Siblings in undergrad? Worth a shot- but again, document. Not just “we pay a lot in tuition” but a brief table showing who is where and what the net cost to the family is.
High value mortgage? No. Choosing to buy a house which chews up your cash flow? That’s a choice- and many people choose to borrow against a high value house via a HELOC or second mortgage if they’re in that situation. Student loan debt- whose debt- a parent? A sibling?
Medical expenses- depends on what “minor” means. Again- document. Family needs to use a provider out of network because a sibling has a rare and chronic disease so only a specialist out of state is capable of treating? You’ll likely get a sympathetic hearing (again, a brief table- showing what the total billing was, how much was paid out of pocket).
External support- ? Supporting other family members who don’t live with you? Unlikely but if there are mitigating circumstances maybe.
Your best bet is- as everyone noted above- merit aid where none of this comes into play. Apply wisely.
Good luck.