The links below will take you directly to digital images of individual land records available at FamilySearch.org
Nicholas Brouwer, of Kings Co., L. I. from William Provoost & Aggie his wife, land and four mills in Westshester Township, Westchester Co., New York, 26 June 1712. Westchester Deeds, Vol. E, pp. 11-13.
Nicholas Brewer, from Daniel Tourneur, 20 April 1726. Westchester Deeds, Vol. F, pp. 179-180.