Corporate Due Diligence: What to Check Before You Sign the Deal
Every deal that goes bad shares the same post-mortem line: 'We should have known.' Real due diligence is the answer to that line — and most of the work happens outside the data room.
What the data room cannot tell you
Counsel-led due diligence reviews everything the counterparty puts in the data room. That is necessary but not sufficient. The data room contains what the counterparty has chosen to disclose, formatted as the counterparty wishes to present it. It is a curated exhibit.
Independent investigative due diligence answers the question the data room cannot: what does the counterparty look like when no one is curating? The principals, the corporate history, the litigation, the regulatory posture, the asset position, the reputational footprint — checked against primary sources rather than the seller's representations.
Principal-level investigation
Every deal has named individuals — founders, CEOs, board members, signing officers — whose conduct controls outcomes. A real principal-level investigation pulls: criminal history in every county and federal district where the individual has resided; civil litigation history (PACER and state); regulatory and licensing actions; UCC filings against the individual; bankruptcy filings; corporate-officer affiliations across all jurisdictions; sanctions and PEP screening; professional discipline; and verified educational and employment history.
We have stopped deals over a principal's undisclosed prior bankruptcy, undisclosed criminal record, ongoing fraud litigation in a sister state, and — in one case — an active deferred prosecution agreement with the federal government that the principal's own counsel had not flagged.
Entity-level investigation
Corporate entities have their own paper trail. The investigation pulls: full corporate filing history including officer changes; registered-agent history (frequent changes are a flag); judgment and lien searches; UCC filings showing financing posture; litigation as plaintiff and as defendant; OSHA, EPA, and state regulatory records; product-liability exposure; trade-name and trademark history; and assumed-name (DBA) filings in every operating jurisdiction.
Florida-specific work also includes Sunbiz filings, Department of Business and Professional Regulation actions, and Florida Department of State documentary review.
Hidden-asset and asset-concealment work
A frequent deal pattern is the seller representing a clean asset position while owning interests through nominee entities, family members, or offshore vehicles. We document the ownership chain through corporate-filings analysis, real-property searches, vessel and aircraft registrations, judgment-debtor exam transcripts, and lawful financial-trace methodology.
When the seller's pre-deal representation conflicts with the documented asset picture, that is not just diligence — that is the foundation of any post-closing rescission claim if the deal turns sour.
Reputational and source work
Some of the highest-value diligence is human source work. Former employees, former counterparties, prior customers, prior business partners — people who have worked with the counterparty's principals and can speak to the experience.
This work is conducted as professional interviews, by senior investigators, with documented protocol. We never represent the work as anything other than what it is, and we never pretext sources. The information that comes out of legitimate professional source work is dramatic — and often determinative.
Cross-border deals
South Florida deals frequently involve Latin American or European principals and entities. Cross-border diligence requires partnerships with vetted in-country investigators, sanctions and AML screening, FCPA exposure analysis, and primary-source corporate-records work in the relevant jurisdictions.
We run cross-border diligence through trusted networks across Latin America, the Caribbean, and Europe. Every cross-border engagement is staffed with attention to the local privacy laws and the chain-of-custody requirements for any evidence that might be used in subsequent U.S. litigation.
Timing and cost
Most corporate diligence engagements run 2–6 weeks depending on scope, number of jurisdictions, and number of principals. Costs range from $7,500 for a focused single-principal background to over $100,000 for complex multi-jurisdiction M&A diligence with cross-border components.
The cost is small against the value of the deals. We have never had a client tell us the diligence was a waste of money. We have had clients tell us the diligence saved them seven and eight figures.
Frequently Asked Questions
When should diligence start in a deal timeline?
As early as possible — ideally when an LOI is being negotiated. Diligence findings often reshape deal terms, escrow amounts, indemnification language, and walk-away rights. Doing diligence in the last two weeks before closing limits what the findings can do.
Is investigative diligence discoverable in later litigation?
Work conducted at the direction of counsel for the purpose of advising on the deal is generally protected by attorney-client privilege and work-product doctrine. Diligence engaged directly by the client without counsel involvement does not get the same protection. We strongly recommend the engagement run through counsel.
Can you do diligence without alerting the counterparty?
Yes. The full scope of public-records, principal-background, and entity-level work is non-notifying. Source work is conducted discreetly with practiced operational security. The counterparty will not know diligence is running unless you choose to disclose it.
Need an investigator on your case?
Call Jeff Giordano directly, 24/7. Florida-licensed, decades of courtroom-tested investigative experience.