A Chicago-based group will be in New York to pitch its $20 million plan to rescue the hospital.
But so far, a bankruptcy trustee has been unwilling to sit down with the Chicago group.
In February, Peninsula's lab failed a health inspection, and the hospital did not have enough money to continue operating without the lab.
A hospital spokeswoman declined to comment on the closure of the 104-year-old hospital after months of efforts to revive the failing center. Hundreds of jobs will be lost if the hospital closes its doors for good.
In court papers filed Monday, the Chapter 11 trustee says she will now "turn to determining the most efficient and responsible manner in which to wind down the affairs of the hospital."
A nursing home affiliated with Peninsula will continue to operate.
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