The Chinese Consolidated Benevolent Association of New England is facing criticism over its failure to use land at Herald and Washington streets for affordable housing, as stipulated in a 1983 deal for the property. The group is expected to sign a new lease that could tie up the property, at Herald and Washington streets, for decades more. As early as Tuesday, the association may vote on a 10-year extension, with two optional five-year extensions to follow, for the C-Mart supermarket.