Is your mom directly employed by Cornell? Or an agency? If her paycheck says Cornell University, then you are in luck. The tuition benefit for Cornell employees is actually 50% if you matriculate at any of the undergraduate colleges at Cornell. See here for more details
https://hr.cornell.edu/benefits-pay/education-benefits/ccts
But this might also give you a leg up with the competition, as faculty children are treated differently in the admissions process. Typically the highest priority is given to children of full professors. But being a high level administrator will certainly help. If your stats are within the 50-75th percentile range, then you will be a strong candidate. As long as there are no other flags in your application (bad letter of recc, discpline, poor essay writing), you should be in great shape. Best of luck!