N.Y. BAT Law § 15

§ 15. If for any of the purposes of this act (including temporary\nconstruction purposes, and the making of additions or improvements to\nbridges or tunnels already constructed), the port authority shall find\nit necessary or convenient to acquire any real property as herein\ndefined, whether for immediate or future use, the port authority may\nfind and determine that such property, whether a fee simple absolute or\na lesser interest, is required for a public use, and upon such\ndetermination, the said property shall be and shall be deemed to be\nrequired for such public use until otherwise determined by the port\nauthority; and with the exceptions hereinafter specifically noted, the\nsaid determination shall not be affected by the fact that such property\nhas theretofore been taken for, or is then devoted to, a public use; but\nthe public use in the hands or under the control of the port authority\nshall be deemed superior to the public use in the hands of any other\nperson, association or corporation.\n The port authority may acquire and is hereby authorized to acquire\nsuch property, whether a fee simple absolute or a lesser interest, by\nthe exercise of the right of eminent domain under and pursuant to the\nprovisions of the eminent domain procedure law of the state of New York,\nin the case of property located in such state, and revised statutes of\nNew Jersey, Title 20:1-1 et seq., in the case of property located in\nsuch state, or at the option of the port authority as provided in\nsection fifteen of chapter forty-three of the laws of New Jersey of\nnineteen hundred forty-seven, as amended, for the condemnation of real\nproperty for air terminal purposes, in the case of property located in\nsuch state, or pursuant to such other and alternate procedure as may be\nprovided by law.\n Where a person entitled to an award in the proceedings to acquire any\nreal property for any of the purposes of this act, remains in possession\nof such property after the time of the vesting of title in the port\nauthority, the reasonable value of his use and occupancy of such\nproperty subsequent to such time, as fixed by agreement or by the court\nin such proceedings or by any court of competent jurisdiction, shall be\na lien against such award, subject only to liens of record at the time\nof the vesting of title in the port authority.\n Nothing herein contained shall be construed to prohibit the port\nauthority from bringing any proceedings to remove a cloud on title or\nsuch other proceedings as it may, in its discretion, deem proper and\nnecessary, or from acquiring any such property by negotiation or\npurchase.\n