§ 246. Notices of filing liens and certificate of discharge. Notice of
surety bond liens in favor of the people of the state of New York as
provided in section two hundred forty-six of this article and
certificates discharging such liens may be filed in the office of the
recording officer of the county in which real property subject to any
such lien is situated, and if such property be situated in two or more
counties, such notice may be filed in the office of the recording
officer of each of such counties. Until the filing of such notice, such
lien shall not be valid as against any mortgagee, purchaser or judgment
creditor having or claiming any right, title or interest in or to or
lien against such property, or any part thereof.