24 C.F.R. § 904.110
(a) Credits to the account. The LHA shall establish and maintain a separate EHPA for each homebuyer. Since the homebuyer is responsible for maintaining the home, a portion of his required monthly payment equal to the LHA's estimate, approved by HUD, of the monthly cost for such routine maintenance, taking into consideration the relative type and size of the homebuyer's home, shall be set aside in his EHPA. In addition, this account shall be credited with
(b) Charges to the account.
(c) Exercise of option; required amount in EHPA. The homebuyer may exercise his option to buy the home, by paying the applicable purchase price pursuant to § 904.113 or § 904.115, only after satisfying the following conditions precedent:
(3) He has rendered, and is continuing to render, satisfactory performance of his responsibilities to the HBA.
When the homebuyer has met these conditions precedent, the LHA shall give the homebuyer a certificate to that effect. After achieving the required minimum EHPA balance within the first two years of his occupancy, the homebuyer shall continue to provide the required maintenance, thereby continuing to add to his EHPA. If the homebuyer fails to meet either his obligation to achieve the minimum EHPA balance, as specified, or his obligation thereafter to continue adding to the EHPA, the LHA and the HBA shall investigate and take appropriate corrective action, including termination of the Agreement by the LHA in accordance with § 904.107(m).
(e) Investment of excess.
(j) Application of EHPA upon vacating of dwelling.
(1) In the event a Homebuyers Ownership Opportunity Agreement with the LHA is terminated or if the homebuyer vacates the home (see § 904.107 (m), (n) and (o)), the LHA shall charge against the homebuyer's EHPA the amounts required to pay