Preparing the case for local preference is rarely a task that involves the ZBA, but the ZBA should know what is required before making local preference a condition of comprehensive permit approval. Toward that end, the ZBA should seek input from the local housing partnership or housing trust, if one exists, or the planning department. In all cases, a local preference requirement should be conditioned “to the extent permitted under applicable law” and made subject to review by the Subsidizing Agency.