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Lender-Grade Validation
Frisby AI Operations
Frisby AI Operations Enterprise AI Accuracy Platform

AI Underwriting
Document Validator

Forensic validation for every document in the loan file. Detect hallucinated figures, fabricated borrower data, unsupported claims, and compliance violations before they reach underwriting decisions.

142+
Validation Rules
99.4%
Detection Rate
<90s
Per Loan File
6
Compliance Maps

Every document in the
loan file. Every claim verified.

AI-generated loan documents contain hallucinated figures at alarming rates. The validator cross-references every data point across the entire file package.

🏦
Appraisal Reports
Validates property valuations, comparable sales data, neighborhood analyses, and adjustment calculations against source records.
  • Comparable sale addresses and prices
  • Adjustment calculations and net/gross ratios
  • Property condition and feature accuracy
  • Market trend data and neighborhood stats
💰
Income Documentation
Cross-references W-2s, pay stubs, tax returns, and employer verification letters for internal consistency and fabrication indicators.
  • Income figures across W-2, paystub, and tax returns
  • Employer name and EIN consistency
  • Year-over-year income trajectory
  • Self-employment P&L verification
💳
Bank Statements
Detects fabricated balances, inconsistent transaction histories, undisclosed liabilities, and large undocumented deposits.
  • Running balance accuracy
  • Large deposit source verification
  • Undisclosed recurring debts
  • NSF/overdraft pattern detection
📝
Loan Packages
Validates the complete loan file: Loan Estimate, Closing Disclosure, title docs, insurance, and borrower declarations for cross-document consistency.
  • Borrower data consistency across all docs
  • DTI ratio calculation accuracy
  • Loan amount, rate, and term alignment
  • Closing cost itemization verification

Three-stage forensic pipeline.
Every claim gets a verdict.

Stage 01
🔎
Claim Extraction
Decomposes every document into individual auditable claims: figures, dates, names, addresses, calculations, and citations.
Stage 02
Cross-Verification
Each claim is checked against source documents, cross-referenced within the loan file, and validated against 142+ underwriting rules.
Stage 03
📊
Scoring & Report
Claims receive verdicts (Verified, Discrepancy, Material Error, Hallucination). A 0–100 confidence score is produced per document and per file.
Output
Audit Trail
Structured report with claim-by-claim evidence, compliance flags, and remediation guidance. Export as JSON or PDF for your audit file.
Sample Validation Output
{
  "document": "appraisal_report_2024-0892.pdf",
  "confidence_score": 72,
  "claims_extracted": 148,
  "findings": [
    {
      "claim": "Comparable sale at 1420 Oak St sold for $485,000",
      "verdict": "MATERIAL_ERROR",
      "evidence": "MLS record shows $458,000 — $27K discrepancy",
      "severity": "critical",
      "compliance_flag": "USPAP_VIOLATION"
    },
    {
      "claim": "Borrower DTI ratio is 38.2%",
      "verdict": "DISCREPANCY",
      "evidence": "Calculated DTI from income docs is 43.1% — undisclosed auto loan",
      "severity": "high",
      "compliance_flag": "QM_ATR_RULE"
    }
  ],
  "compliance_status": {
    "RESPA": "PASS",
    "TILA": "FLAG",
    "FHA": "PASS",
    "Fannie_Mae": "FLAG"
  }
}

Built-in regulatory intelligence
for every major lending framework.

Every validation automatically maps findings to the specific regulatory requirement it may violate. No manual compliance lookup required.

Federal
RESPA
Real Estate Settlement Procedures Act compliance for closing disclosures and settlement statements.
  • Good Faith Estimate accuracy
  • Settlement cost itemization
  • Affiliated business disclosures
  • Servicing transfer notices
Federal
TILA / TRID
Truth in Lending Act and TILA-RESPA Integrated Disclosure rules for loan terms and APR accuracy.
  • APR calculation verification
  • Loan Estimate / Closing Disclosure match
  • Finance charge accuracy
  • Right of rescission timing
Federal
FHA / VA / USDA
Government-backed loan program requirements for eligibility, appraisal standards, and documentation.
  • FHA appraisal requirements
  • MIP calculation accuracy
  • Property eligibility validation
  • Borrower qualification thresholds
GSE
Fannie Mae / Freddie Mac
GSE selling guide compliance for conventional loans, including DU/LP findings alignment.
  • Selling guide eligibility rules
  • AUS findings consistency
  • Representation & warranty risk flags
  • QC sampling requirements
Federal
ECOA / Fair Lending
Equal Credit Opportunity Act and fair lending compliance to detect disparate treatment indicators.
  • Adverse action documentation
  • Pricing disparity detection
  • Prohibited basis screening
  • HMDA data accuracy
QM / ATR
Ability-to-Repay
Qualified Mortgage and Ability-to-Repay rule validation for DTI, income, and debt verification.
  • DTI threshold compliance
  • Income documentation sufficiency
  • Points and fees limits
  • Safe harbor / rebuttable presumption

The cost of one bad loan
dwarfs the cost of prevention.

$45K+
Average Buyback Cost
Per defective loan repurchased by GSEs. Includes principal loss, legal fees, and operational overhead per incident.
87%
Defects from Data Errors
The majority of loan repurchase demands stem from income, asset, or property valuation misrepresentations that automated validation catches.
14x
Return on Investment
For every dollar spent on automated pre-close validation, lenders avoid $14 in post-close remediation, repurchase, and penalty costs.

Cost Comparison: Manual QC vs. Automated Validation

Based on a mid-size lender processing 6,000 loans/year

MetricValue
Manual QC cost per loan (senior underwriter review)$85 – $150
Automated validation cost per loan$9 – $18
Average buyback / indemnification per defect$45,000+
Defect rate (manual QC only)3.2%
Defect rate (with automated pre-close validation)0.4%
Estimated annual savings (500 loans/year)$756K+

Try it now — validate a
sample underwriting document

Load a sample document or paste your own text. The validator runs multi-pass analysis checking TRID/RESPA compliance, calculation integrity, data consistency, and completeness.

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Initializing...
0
Overall Validation Score
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Findings

Included in Frisby AI Operations

This tool is included in the Professional plan and above. Start your Instant access today.

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Stop hallucinations before they reach underwriting.

Every fabricated figure in a loan file is a buyback waiting to happen. Automate validation and protect your lending operation.

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