Start with a documented quality control system
The post-closing review is one part of the Seller’s broader quality control system. Responsibilities, independence, selection, review scope, reporting, escalation, corrective action, and record retention need to work together. If one piece exists only as an informal practice, the cycle is difficult to reproduce or audit.
Preserve the complete population and the selection logic
Keep the production population used for each review cycle, reconcile it to the system of record, and attach every exclusion to a reason. For selected loans, preserve the selection method and any risk-based criteria. A reviewer or auditor should be able to understand why the loan was present and recreate the sample without relying on an overwritten spreadsheet.
Review the file, not only a data extract
Structured loan data improves consistency, but material conclusions need source evidence. Maintain a document inventory, identify the controlling version, and connect the relevant page or field to the observation. Reperform calculations where the requirement depends on timing, amounts, ratios, eligibility, or consistency across documents.
Make reverification outcomes explicit
Represent request, response, result, exception, follow-up, and waiver as separate states. Store the returned evidence where permitted, identify variances, and record the reviewer’s resolution. This prevents an outbound letter or integration event from being mistaken for a completed verification.
Report patterns, not only isolated defects
Loan findings need to roll into useful management information: affected source or channel, defect category and severity, recurrence, root cause, and required action. Separate representative sampling from targeted work so the reader can interpret the defect measures correctly.
Close corrective action with evidence
A corrective action is not complete when a task is assigned. Record the owner, due date, remedy, affected scope, validation evidence, approver, and closure date. If the defect affects delivered loans or representations and warranties, follow the current Guide and internal escalation process.
Evidence package for a Freddie Mac QC cycle
- QC plan version and responsible roles
- Reconciled population and selection record
- Risk criteria and targeted-review rationale
- Source file inventory and cited observations
- Reverification requests, responses, and variances
- Reviewer dispositions and approvals
- Management report and trend analysis
- Corrective action, validation, and closure evidence
Frequently asked questions
Where are Freddie Mac post-closing QC sampling requirements published?+
The core sampling and loan file review provisions are in Freddie Mac Seller/Servicer Guide §3402.2, with connected governance, reporting, and corrective-action requirements elsewhere in Chapter 3402.
Does Freddie Mac require targeted reviews in addition to random sampling?+
The quality control system should use risk-based selection and monitoring alongside representative sampling. Confirm the current Chapter 3402 language and reflect the criteria in your controlled QC plan.
Can a software finding replace reviewer judgment?+
No. Software can preserve inputs, perform repeatable calculations, and surface exceptions. An accountable reviewer still needs to evaluate evidence, severity, disposition, and corrective action under the lender’s plan.
Primary sources
Requirements change. Confirm the current guide and your approved QC plan before changing a production process.