Reviewing a contractor chain for gaps: what the decision maker looks at
A contractor chain review checks whether intellectual property produced by external developers, designers or data specialists actually passed to the company that paid for it. The decision maker traces every link — main contractor, subcontractors, freelancers — and looks for a missing assignment, an unsigned annex or a scope mismatch. A single gap can leave ownership unresolved years later.
Why a gap changes the timeline and the risk
A missing signature does not surface immediately. It usually appears when the company tries to license the product, raise investment, or sell the business, and a buyer's due diligence team asks for the chain of title. At that point the gap is no longer a paperwork problem — it is a blocker on the transaction, and fixing it under time pressure costs more than fixing it early.
The practical effect is twofold. First, the company may not be able to enforce its rights against a third party who copies the work, because the claimant cannot prove it owns what it is suing over. Second, a contractor who never assigned the work can, in principle, licence it elsewhere or refuse further use.
Gaps rarely start as a deliberate refusal. They usually start as a missing flow-down clause: the main contractor signed a clean assignment, but its own subcontract with a freelancer only granted a licence. The freelancer never assigned anything, because nobody asked. Historical contracts, drafted before the company adopted a standard template, are the second common source of gaps.
Steps in the review
The review follows a fixed sequence. Skipping a step does not save time — it moves the risk further down the chain, where it is harder to see.
- The reviewer lists every party who touched the deliverable: main contractor, named subcontractors, individual freelancers, and any agency that supplied staff.
- The reviewer collects the contract for each party and checks whether it contains an assignment clause, not only a licence.
- The reviewer matches the scope of each assignment against the actual deliverable. An assignment written for "the website" does not automatically cover a later mobile application built by the same contractor.
- The reviewer checks the signature block: date, signatory authority, and whether the version signed matches the version filed.
- Legal counsel flags any gap in writing, with a short description of what is missing and why it matters.
- Management decides whether to close the gap now, through a retrospective assignment, or accept the risk and record that decision.
What counts as evidence in the chain
Not every document proves the same thing. A signed assignment agreement is the strongest evidence: it names the work, names the parties, and states that ownership transfers. An employment contract with a general intellectual property clause is usually weaker, because it covers only work created within the scope of employment, not everything an employee happens to produce. A purchase order that merely references standard terms is weaker still, unless those terms are attached and actually contain an assignment.
Where the original contract cannot be found, the reviewer looks for secondary evidence: invoices describing the deliverable, email correspondence confirming delivery and payment, or a later contract that refers back to the missing one. Secondary evidence does not close a gap on its own, but it shapes how urgently the company should chase a signature.
| Stage | Who is responsible | Typical output |
|---|---|---|
| Mapping the chain | In-house legal or project owner | List of every party and contract |
| Reading each contract | In-house legal | Note on assignment vs licence, scope match |
| Flagging gaps | In-house legal | Written gap register |
| Deciding on remedy | Management, with external counsel if needed | Decision record or retrospective assignment |
Who runs the review and how long it takes
Internally, the review is usually run by in-house legal or a delegated manager, with external counsel brought in once a gap is confirmed. The internal stage — collecting and reading contracts — typically takes one to three weeks, depending on how many contractors are involved and how well the company's contract archive is organised. Closing a confirmed gap, by contrast, depends on whether the original contractor is still reachable and willing to sign.
A contractor who is still trading and on good terms with the company will usually sign a short retrospective assignment within days. A contractor who has dissolved, gone quiet, or become an adversary in an unrelated dispute can turn a routine gap into a months-long negotiation, and management should factor that possibility into any deal timeline that depends on the review.
Common scenarios
If every contract in the chain contains a clean assignment clause with a matching scope, the review closes with no further action and the gap register stays empty. If one contractor is a freelancer engaged without a written contract at all, the gap is treated as open by default. The company should approach that person directly, rather than assume the work was covered by a verbal understanding.
If the chain includes a software support arrangement, check what happens once support ends. A support contract can expire while the licence granted under it continues — see Support ends but the licence continues technology contract the. If one link in the chain is a party that later relocates to another jurisdiction, the time limit for acting on a gap can shift — see The deadline that matters in this situation.
What this review does not cover
This review answers one question only: does the company hold clean title to the work. It does not establish whether a contractor named in the chain has recoverable assets or is worth pursuing if a gap turns into a dispute. That question sits in a separate layer of analysis.
For a counterparty based in Lithuania, that layer is covered in Asset in Lithuania in practice. For a counterparty based in Poland, the equivalent question is covered in Debtor in Poland in detail.
Checked and sources
Last checked: February 2025. This page describes an internal review procedure. It does not rely on a specific statutory citation. Where a gap raises a question of statutory ownership, that question is addressed on other pages in this section that carry the applicable legal basis.
Related reading
Before starting a gap review, it helps to know what the default rule gives the employer without any contract at all — see Confirming what the default rule gives the employer ownership.
FAQ
How long does reviewing a contractor chain for gaps take in practice?
For a chain of three to five contracts, the internal mapping and reading stage usually takes one to three weeks. A confirmed gap adds time on top, depending on whether the original contractor can still be reached and is willing to sign.
Which documents are needed to start?
The reviewer needs every contract in the chain, any annexes or statements of work referenced by those contracts, and, where available, correspondence showing what was actually delivered under each one. Invoices and payment records help where the original contract is missing.
What happens if the other side does not respond?
Silence does not close the gap. The company records the outstanding request, sets a deadline for a second attempt, and treats the gap as open until a signed assignment is on file. A gap that stays open through a transaction should be disclosed, not hidden.