Choyce Peterson, Inc. has negotiated an 11,000 s/f lease for D. W. Van Dyke and Company at Wilton Crossing, 195 Danbury Rd. D. W. Van Dyke, the largest privately held reinsurance intermediary firm in the life, health and accident markets, will relocate from 323 Riverside Ave. in Westport. Robert Hopper, vice president of Choyce Peterson, and GVA Williams represented D. W. Van Dyke in its search and lease negotiation.