The audit did not question the wisdom of that decision, but it condemned the city's failure to do anything with the property as "a waste of taxpayers' money."
An audit last year questioned $85,000 in expenditures by student government officials, including thousands spent on limousines with cellular telephones.
The audit questioned trips arranged by Mr. Ross and a previous superintendent.
The audit questioned the trip's "reasonableness and necessity."
The audit questioned whether "the lack of supporting documentation for such an extremely large number of transactions was a deliberate attempt to conceal certain irregular activities."
The audits released last week did not question the legality of using money from the fund, but criticized accounting and reporting procedures.
The audit questioned why both Chesbroughs had development duties.
The audit also questioned $17,000 in stipend payments made to Diorio between 2006 and 2013.
The audit also questioned the Natural History museum's channeling of visitors' contributions so they could not be spent on general operating expenses.
The audit also questioned salary payments to 27 other people.