facade in 1989, both for illuminating Grand Central Terminal and discouraging crime on nearby streets. The terminal's operators also proposed constructing a loading dock and garbage-collection facility next to the Grand Hyatt, but Trump opposed these plans. This loading dock, which separated the Grand Hyatt from the Graybar Building, was replaced in the 1990s with a pedestrian passageway. Financial troubles and decline of partnership In late 1989, state officials ordered the hotel to pay the city government $2.9 million in back rent, which the hotel had withheld in 1986 after changing its accounting procedures. An investigation by city auditors found that the hotel was missing basic financial records and was using procedures that violated Generally Accepted Accounting Principles. Mayor Koch asked the UDC to collect the rent from Trump, but the UDC declined to do so. New York City's auditor general had been investigating the case, but Koch's successor David Dinkins subsequently disbanded the auditor general's office. Several of Trump's companies were struggling financially by 1990, and he considered selling his stake in the Grand Hyatt to pay off outstanding debt. That June, Trump offered his stake in the Grand Hyatt as collateral for a $65 million syndicated loan from several banks. At the time, the hotel had a relatively high net operating income of $15.7 million; real-estate experts estimated that Trump's stake was worth between $157 million and $186 million. By the following year, Trump was negotiating to sell most of his stake in the Grand Hyatt to one of his lenders, Bankers Trust. Trump and Hyatt's partnership deteriorated during the early 1990s. Trump sued several members of the Pritzker family in 1993, accusing them of racketeering; he sought full control of the hotel and $500 million in damages. Trump claimed that Hyatt wanted to force him out of the partnership because their agreement prevented the chain from operating other Hyatt-branded convention hotels in New York City. Due to a non-compete clause, Hyatt could not advertise the nearby UN Plaza Hotel as being part of the chain. Hyatt also wished to renovate the hotel for $35.7 million, funded equally by Trump and the Pritzkers, so the Grand Hyatt could "remain competitive" with other hotels. Trump initially agreed to pay for his half of the renovation, but he later reneged, claiming the repairs were too extravagant. When the Pritzkers opened arbitration proceedings to force Trump to pay for the renovations,