FMAE for Advisory Firms

The Problem Advisory Firms Face¶

Advisory firms — M&A advisers, transaction support teams, restructuring practices, and financial due diligence teams — routinely encounter financial models as part of client engagements. The models they work with have been built by their clients, by counterparties, or by target companies. The quality of those models is variable, often unknown, and always consequential.

The core problem is scope and time. An advisory team engaged on a complex transaction may have days rather than weeks to form a view on a financial model's reliability. Manual model review at the formula level is time-consuming, requires specialist skills that not every team member has, and produces outputs that are difficult to document and defend.

The result, in practice, is that most advisory model review is limited to checking assumptions, running sensitivities, and satisfying themselves that the model "feels right." This is not independent model assurance. It is professional judgement applied under time pressure — which is different.

For advisory firms that want to offer clients something more rigorous, or that need to document their model review process to a defined standard, the gap between what they typically deliver and what the transaction requires can be significant.

What Advisory Firms Need¶

Advisory firms need a model review capability that:

• Produces results at transaction speed, not at the pace of a manual formula-by-formula audit
• Generates a documented, reproducible record of what was tested and what was found
• Can be deployed across a range of model types and sizes without requiring dedicated model audit specialists on every engagement
• Gives the team a genuine understanding of where the model's structural risks are concentrated, so they can advise clients and counterparties accurately

The output of a model review in an advisory context needs to be defensible. If a transaction is later challenged and the advisory firm's diligence process is scrutinised, the question will be: what specifically did you test, what did you find, and how do you know?

How FMAE Addresses These Needs¶

FMAE (Financial Model Audit Engine) is a deterministic financial model audit tool. It does not generate commentary from pattern matching — it executes the model's formula logic and identifies structural errors, inconsistencies, and deviations from expected behaviour with mathematical certainty.

For advisory firms, this matters in several ways:

Speed with substance. FMAE processes complex financial models in minutes rather than days. The advisory team has documented findings to work with at the beginning of the engagement, not at the end.

Systematic coverage. Every formula row, every hardcoded value, every circular reference, and every broken reference is tested. Manual review of the same model at the same depth would take far longer and would still not achieve the same systematic coverage.

Documented output. FMAE produces a findings report that records what was tested, what was found, and how each finding is classified. This creates an audit trail for the advisory team's review process that can be retained in the engagement file.

Separation of structural and assumption risk. The FMAE output distinguishes between errors in the model's logic and the commercial reasonableness of its assumptions. This is an important distinction: the advisory team can use FMAE to clear the structural risk and then focus their professional judgement on the assumption risk — where their market knowledge actually adds value.

Typical Advisory Use Cases¶

Buy-side due diligence: An advisory team reviewing a target's financial model as part of a buy-side mandate uses FMAE to rapidly assess whether the model's structure is reliable before spending time on assumptions. If FMAE identifies material structural errors, the team can flag these immediately in due diligence rather than discovering them later.

Sell-side preparation: An advisory team preparing a client for sale uses FMAE to review the client's financial model before it is shared with potential buyers. Structural errors identified and corrected before the model goes into the data room reduce the risk of the deal being disrupted by buyer due diligence findings.

Transaction support model review: An advisory team providing transaction support to a borrower or equity investor uses FMAE to verify that the financial model is arithmetically reliable before it is submitted to lenders. This is distinct from the lender's independent model audit — it is the adviser's quality assurance process before submission.

Restructuring model assessment: An advisory team engaged in a restructuring uses FMAE to rapidly assess whether the debtor's financial model is structurally reliable as a starting point for restructuring negotiations. A structurally flawed model produces wrong DSCR, IRR, and debt sizing outputs, which can misalign the negotiation if not identified early.

Red flag review on tight timelines: Where time does not permit a full audit, FMAE's systematic output provides the basis for a rapid red flag report that documents the highest-priority findings for the client's immediate decision-making.

The Advisory Workflow with FMAE¶

The typical workflow for an advisory firm using FMAE in a client engagement:

1. Receive the model from the client, counterparty, or target company
2. Run FMAE to generate the structural audit output — typically completed within minutes to hours depending on model size
3. Review the findings report to identify critical, significant, and minor findings
4. Communicate critical findings to the relevant parties (client, counterparty, or internal deal team) before proceeding with deeper assumption-level analysis
5. Document the review in the engagement file, using the FMAE output as evidence of the model review process
6. Advise the client on whether the model's structure is reliable, what corrections are required, and what risks remain
7. Re-run FMAE on the corrected model to confirm that critical findings have been resolved

This workflow adds systematic structural assurance to the advisory team's existing diligence process without replacing the professional judgement that the team brings to assumption-level review.

What This Changes for Advisory Firms¶

Before systematic model audit tooling, advisory firms faced a practical choice: spend days on manual formula review (which most engagement timelines cannot accommodate) or rely on high-level reasonableness checks that are not systematic and are difficult to document.

FMAE changes this by making systematic, documented structural review practical within normal advisory engagement timelines. The output does not replace advisory judgement — it creates a documented foundation for it.

Advisory firms that integrate model audit into their standard diligence process can:

• Represent to clients that their model review is systematic rather than selective
• Retain documented evidence of the review process in the engagement file
• Identify structural errors before they reach decision-making, not after
• Focus their team's time on the high-value work of assumption analysis and commercial interpretation

Limitations and Scope Clarity¶

FMAE performs deterministic structural audit. It is not a substitute for:

• Commercial reasonableness assessment of assumptions
• Market data verification or benchmarking
• Tax or legal advice
• A formal model audit certificate for a lender condition precedent

Advisory firms using FMAE as part of a due diligence process should be clear with clients about what the tool covers and what additional advisory judgement covers. The combination of systematic structural review (FMAE) and professional assumption review (the advisory team) is more complete than either alone.

Continue Reading¶

Related Pillars¶

• What Is a Financial Model Audit?

Related Technical Guides¶

• Audit Methodologies for Financial Models

Related Glossary¶

• Model Audit Certificate
• Generative Model Review
• Red Flag Report