The county is now exploring legal action to block the move.
The court rejected a company appeal to block the move.
The league insisted that approval was necessary and tried to block the move.
The head of the Missouri center had obtained the temporary order from another state court to block the move.
However, the city of Buffalo filed a $10 million damage suit to block the move.
He needs only a third of the ballots cast to block the move by the fund's independent trustees.
Over the next three years the Washington school will be gradually shut down, unless students and faculty members win a lawsuit to block the move.
United, which won its bid to block the move, said the leaseholders wanted to force the company to pay higher rates than other companies paid.
Some residents of the Cambridge House are looking into possible legal action to block the move.
But a court injunction blocked the move, pending a hearing on Sunday.