<p>Another missed deadline cost her several thousand dollars in aid in her senior year, and Emory mistakenly concluded that Mrs. Lady had made a $70,000 down payment on a house. (In describing the complicated transaction with a nonprofit group, Angelica failed to note that most of the money came from a program for first-time home buyers.) Emory officials said the mistake did not affect her aid, but the difference between the school’s costs and her package of loans and grants swelled to $12,000 — a sum she could not possibly meet.</p>