The city is seeking to partner with New Colony Development Fund to clean up and renovate the Sessions Building brownfield property at 273 Riverside Ave., which is considered a gateway to downtown. The Board of Finance granted a request by Justin Malley, the city’s Economic and Community Development executive director, for a bid waiver and $100,000 so the city can get to work with New Colony, which Malley said is one of the few land banks in Connecticut. Bristol was working with one land bank but the director retired so now the city developing a relationship with New Colony, he said. “The president is Dale Kroop, who was the economic development chief in Hamden for 25-30 years. He’s somebody I respect a great deal.” Their construction partner will be D’Amato Construction and the architect will be Quisenberry, Arcari and Malik of Farmington.