(e) Conversion of payment. A displaced person who initially rents a replacement dwelling and receives a rental assistance payment under § 24.402(b) is eligible to receive a payment under § 24.401 or § 24.402(c) if he or she meets the eligibility criteria for such payments, including purchase and occupancy within the prescribed 1-year period. Any portion of the rental assistance payment that has been disbursed shall be deducted from the payment computed under § 24.401 or § 24.402(c).