Treasury Office of Inspector General (OIG) should follow up with Oklahoma County's management to confirm if the $91,218 noted as unsupported expenditures within the Transfers greater than or equal to $50,000, Aggregate Reporting less than $50,000, and Aggregate Payments to Individuals payment types can be supported. If support is not provided, Treasury OIG should recoup the funds or request Oklahoma County management to provide support for replacement expenses, not previously charged, that were eligible during the CRF period of performance. In addition, Treasury OIG should request Oklahoma County management to provide support for replacement expenses, not previously charged, that were eligible during the CRF period of performance for the $326,664 of ineligible costs charged to the Transfers greater than or equal to $50,000 payment type. If support is not provided, Treasury OIG should recoup the funds. Further, based on Oklahoma County's responsiveness to Treasury OIG's requests and management's ability to provide sufficient documentation and/or replace unsupported and ineligible transactions charged to CRF with valid expenditures, Treasury OIG should determine the feasibility of conducting an audit for the Transfers greater than or equal to $50,000, Aggregate Reporting less than $50,000, and Aggregate Payments to Individuals payment types. Treasury OIG should follow-up with Oklahoma County to request that Oklahoma County management performs an assessment over the $1,288,109 in grants funds paid to the Oklahoma County Home Finance Authority, which were not tested by Castro, to determine if rental assistance payments and prepaid debit cards payments were made utilizing solely Oklahoma County's CRF proceeds, or if these expenses were paid with State of Oklahoma and Oklahoma City funding sources. If support is not provided, Treasury OIG should recoup the funds or request Oklahoma County management to provide support for replacement expenses, not previously charged, that were eligible during the CRF period of performance.
