In this title the following words have the meanings indicated. “Administration” means the Community Development Administration. “Division” means the Division of Development Finance. “Elderly household” means, except as provided in § 4–2901 of this title, one or more individuals who occupy a residential dwelling unit, at least one of whom meets the age limit specified by the Secretary that: is greater than or equal to age 55; and may vary for different programs or types of projects. “Nonprofit sponsor” means a sponsor that is: a nonprofit organization; or a limited partnership, if: each general partner is a nonprofit organization; or each general partner is a wholly owned subsidiary of a nonprofit organization; the limited partnership is formed to undertake a project that is eligible as a whole or in part for a federal program or incentive, including low–income housing tax credits; and a nonprofit organization manages the project or will receive the net cash flow or residual sale proceeds on the sale of the project.