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.