Business & commercial law

Legal due diligence in Bulgaria before you buy, invest, or partner.

An independent legal review of a Bulgarian company or business you are acquiring, investing in, or entering a partnership with — corporate records, contracts, litigation history, regulatory standing, and any property or assets it holds. The scope and fee are agreed in writing before any work begins.

Written and reviewed by Adriana Melnikliyska, Attorney-at-law, Blagoevgrad Bar No. 1900000227. Last reviewed 27 September 2026.

Short answer: legal due diligence is an independent legal review of an existing Bulgarian business — typically before you buy it, invest in it, merge with it, or enter a material contract with it — covering its corporate records, its material contracts, its litigation and enforcement history, its regulatory standing, and any property or registered assets it holds. It answers one question: what legal risks and obligations would actually transfer to you if this deal proceeds, and on what terms should the deal be structured to account for them. It is legal work carried out by an attorney, separate from — and not a substitute for — a financial or accounting review of the same target.

Who this page is for

This page is for anyone considering a transaction involving an existing Bulgarian company or business: buying a company outright (a share deal), buying its assets or business (an asset deal), taking a minority or majority investment position, entering a joint venture, agreeing a significant supply or distribution contract with a Bulgarian counterparty, or lending against a Bulgarian company's assets. It is written for the buyer, investor or lender side of that decision — the party who needs to know what they are actually taking on before money moves or a signature is given.

What this page does not cover: if what you actually need is a brand-new Bulgarian company — formation, a registered address, and the standard incorporation documents for a company that does not yet exist or has no trading history to review — that is a company-formation service, not a legal due diligence review, and is provided by business-services and company-formation providers such as Bulgarian.LLC, not by this page. Legal due diligence, as described here, is the review of an existing, already-operating target before a transaction involving it — not the sale or purchase of a ready-made shelf company that has no operating history of its own to examine.

What a legal due diligence review actually checks

A legal due diligence exercise is organised around the categories of risk that actually transfer with a business, not a generic checklist applied identically to every target. The following are the core areas reviewed on a typical Bulgarian target, adjusted in depth to the size and nature of the actual transaction:

Corporate records

The starting point is the target's own Commercial Register file: its registration history, current registered capital and its actual payment status, the identity and authority of its shareholders and managing representatives, any pending changes not yet reflected in the public record, and whether its constitutional documents (articles of association, shareholder resolutions) are internally consistent with what the register shows. Discrepancies here — a director whose authority has technically lapsed, capital that was never actually paid in, resolutions that were never properly adopted — are exactly the kind of defect that a purchaser only discovers after completion if nobody checked beforehand.

Contracts

Material contracts — supply agreements, customer contracts, leases, loan and financing agreements, employment contracts for key staff, licensing arrangements — are reviewed for their actual terms, not just their existence: termination rights, change-of-control clauses that could trigger a counterparty's exit on completion of the deal itself, guarantees or security given by or in favour of the company, exclusivity or non-compete obligations, and any contract that depends on a specific individual or relationship that may not survive the transaction. A change-of-control clause buried in a key customer contract can materially change what the target is actually worth to the buyer, and is the kind of finding that belongs in the negotiation, not discovered afterward.

Litigation and enforcement history

Whether the target is, or has recently been, a party to litigation, arbitration, or enforcement proceedings — as claimant or defendant — and whether any judgment, distraint, or bailiff action has been recorded against it. This draws on the Commercial Register's own entries, publicly available court records where accessible, and direct disclosure requested from the target and its counterparties. A pattern of disputes with suppliers or customers, or an undisclosed enforcement action, is a materially different risk picture from a company with a clean litigation history, even where the headline financials look identical.

Regulatory compliance

Whether the target holds the licences, permits or registrations its actual business activity requires, whether those are in good standing, and whether any sector-specific regulatory regime applies to it (data protection, sector licensing, environmental permits, where relevant to the business). Where a business needs a licence it does not currently hold, or holds one under conditions it is not actually meeting, that is a risk that follows the business into new ownership, not one that resets on completion.

Property and asset title

Where the target owns or claims to own real estate, the same categories of check used on a standalone property purchase apply here: title and encumbrance history in the Property Register, the cadastral record, and confirmation that what the company's books show as an asset is actually, cleanly, in the company's name and free of undisclosed liens. The same applies to other registered assets — vehicles, intellectual property registrations, and equipment subject to any retention-of-title or security arrangement.

Legal due diligence versus financial or accounting due diligence

These are two different, complementary reviews, carried out by two different professionals, and confusing them — or assuming one covers the other — is itself a common source of post-completion disputes.

Question	Legal due diligence (attorney)	Financial / accounting due diligence (accountant)
Is the company's registered capital actually what the register shows, and is it validly authorised to act?	Reviewed directly against corporate records and constitutional documents.	Not typically assessed — this is a legal-standing question, not a financial one.
Are the historical accounts accurate and do they reflect the company's actual financial position?	Not assessed — this is an accounting review, not a legal one.	Reviewed against the company's books, tax filings and financial statements.
Does a key contract contain a change-of-control clause that could end it on completion?	Reviewed as part of the contract review.	Not typically reviewed in a financial review.
Is the company's tax position compliant, and what liabilities might be assessed on audit?	Not the focus of a legal review, though a disclosed tax dispute is flagged.	Reviewed as part of financial due diligence, in coordination with any actual tax dispute assessed separately.
Is the company, or a person associated with it, currently a party to litigation or enforcement proceedings?	Reviewed directly.	Not typically the focus of a financial review beyond any provisioned liability.
Does the company actually and cleanly own the property or assets shown on its balance sheet?	Title reviewed directly against the Property Register and cadastre.	The balance-sheet value is reviewed; legal title itself is not.

On most transactions of any real size, both reviews run in parallel, coordinated but distinct: the accountant's findings on financial condition and the lawyer's findings on legal risk are brought together into the same negotiation, often affecting the same terms — price adjustment mechanisms, warranties, indemnities, and what is held back in escrow — from two different angles. Neither review substitutes for the other, and a buyer who commissions only a financial review, assuming it also covers legal standing, is taking on exactly the kind of risk this page exists to surface before completion rather than after it.

Red flags that commonly surface

The specific findings vary by target, but certain categories of problem recur often enough across Bulgarian legal due diligence reviews to be worth naming directly:

Capital that was never actually paid in, despite the Commercial Register showing a registered capital figure — a gap between the legal record and the underlying reality that can affect shareholder liability and the company's actual financial substance.
Undisclosed related-party transactions — loans, guarantees, or contracts between the company and its own shareholders or directors, on terms that would not have been agreed with an independent third party.
Change-of-control clauses in key customer, supplier or financing contracts that were not flagged by the seller and could trigger termination or renegotiation the moment the deal completes.
Litigation or enforcement history not volunteered by the seller, whether because it was overlooked or because it was deliberately not raised.
Employees or contractors engaged on a basis that does not match their actual working arrangement, creating potential reclassification or liability exposure that transfers with the business.
Property shown as a company asset that is, on closer review, encumbered, disputed, or not actually registered in the company's name.
Licences or permits that have lapsed, are held on conditions the company is not currently meeting, or do not actually cover the business activity being carried out.

None of these findings automatically stop a deal — most are addressed through price adjustment, a specific warranty or indemnity, a condition precedent to completion, or an amount held back in escrow. The point of surfacing them during due diligence is that they become negotiating positions while the deal is still open, rather than disputes after the money has already changed hands.

How a legal due diligence review is scoped and carried out

Initial description. You describe the transaction — a share purchase, an asset deal, an investment, a joint venture — and the target company, and share whatever information you already have (a data room, a company name, existing draft transaction documents).
Conflict and scope check. The matter is checked for conflicts of interest, and the actual scope of review is defined — a full review across every category above, or a narrower review focused on the areas of greatest concern for this specific deal.
Written scope and fee. If the matter can be taken on, a written scope and the applicable fee are confirmed before substantive work begins.
Document request and register searches. A document request list is issued to the seller or target (via your side of the transaction), and the relevant public registers — Commercial Register, Property Register, cadastre — are searched directly rather than relying solely on what the seller discloses.
Review and findings report. The documents and register results are reviewed against each category above, and findings are reported in a structured written report identifying material risks and, where relevant, suggested contractual protections.
Negotiation support. Where findings affect the deal terms, this feeds directly into the negotiation of price, warranties, indemnities, conditions precedent, or escrow — either through the transaction documents themselves or through coordination with your own commercial advisors.

Where the transaction also involves buying, holding, or securing real property through the target company, the property-specific checks described on the title and encumbrance check page are folded into the same review rather than treated as a separate, duplicated exercise.

Documents typically needed

The target's current Commercial Register extract and constitutional documents (articles of association, shareholder register).
The most recent annual accounts and, where available, management accounts (shared with your accounting due diligence provider; reviewed here only where a legal issue is identified within them).
Copies of material contracts — key customer and supplier agreements, leases, financing agreements, employment contracts for key personnel.
Any existing litigation, arbitration, or enforcement records, whether disclosed voluntarily by the seller or identified independently.
Licences, permits and registrations relevant to the target's actual business activity.
Title deeds, cadastral records and any existing encumbrance certificates for property the target holds.
Any existing draft transaction documents — a term sheet, a letter of intent, or a draft share purchase agreement, if one already exists.

Sending what already exists, even before a data room is formally assembled, is normally the fastest way to scope the review accurately. Nothing sensitive should be sent before the secure submission route is confirmed.

Realistic timing and cost

How long a legal due diligence review takes, and what it costs, depends on the size and complexity of the target, how well-organised its own records are, how quickly the seller responds to document requests, and how many categories of review the transaction actually requires. A focused review on a small target with clean records is a different piece of work from a full review on a company with a longer trading history, multiple contracts, and prior litigation. No fixed timeline or price is stated on this page; the professional fee and any expected third-party costs (register search fees, translation) are set out in writing, matched to the actual scope, before work begins. Since Bulgaria adopted the euro on 1 January 2026, fees and any register fees referenced during the review are quoted and paid in euro.

What this review does not do

To be clear about the limits of this service: a legal due diligence review reports the legal risks that can be identified from the records and disclosures actually made available within the agreed scope and timeframe — it cannot guarantee that every risk has been found, particularly where a seller withholds information or where a register entry is itself incomplete or delayed. It does not replace financial or accounting due diligence, does not itself negotiate the commercial price (though its findings inform that negotiation), and does not extend to due diligence on assets or jurisdictions outside Bulgaria unless separately agreed. It is not a company-formation or shelf-company sales service, and does not include the registration of a new company on your behalf.

Fees

Legal due diligence fees depend on the scope agreed: a focused review of a small target is a different piece of work from a full review across every category on a larger company with a longer history. The professional fee and any third-party costs are set out in writing before any work begins — see how fees are set. No figure is stated on this page, and no free initial review is offered; the written scoping stage itself is the paid first step.

Frequently asked questions

What is legal due diligence, in plain terms?

An independent legal review of an existing business you are considering buying, investing in, or entering a significant contract with — covering its corporate records, contracts, litigation history, regulatory standing, and any property or assets it holds — so you know what legal risks would transfer to you before the deal completes.

How is this different from a financial or accounting due diligence review?

Legal due diligence checks legal standing, contractual risk, litigation history, regulatory compliance and asset title. Financial or accounting due diligence checks the accuracy of the accounts and the company's actual financial condition. They are complementary, carried out by different professionals, and neither substitutes for the other.

Do you help with buying a ready-made Bulgarian company (a shelf company)?

No. This page covers the legal review of an existing, already-operating target before a transaction involving it. Forming a new company or buying a ready-made shelf company with no trading history is a company-formation service provided by business-services providers such as Bulgarian.LLC, not a due diligence review.

What if the seller will not provide certain documents?

A seller's unwillingness or inability to provide a category of document is itself a finding — it is reported as a gap in the review rather than assumed away, and can itself be a basis for renegotiating price, requiring a specific warranty, or walking away from the deal.

Can legal due diligence stop a deal from happening?

It can identify risks serious enough that you decide not to proceed, but more often findings are addressed through price adjustment, warranties, indemnities, a condition precedent, or an escrow arrangement rather than by ending the transaction outright. The decision is yours; the review's role is to give you an accurate basis for making it.

Do you review contracts written only in Bulgarian?

Yes. Corporate records, contracts and register documents are routinely reviewed in Bulgarian, with the relevant terms and risks explained in English so you understand exactly what you are being asked to rely on.

How far back does a litigation and enforcement history check go?

This depends on what is publicly accessible and what is disclosed, and is scoped to the specific transaction. A defined look-back period is agreed as part of the written scope rather than left open-ended.

Can you check whether a company actually owns the property it lists as an asset?

Yes. Where a target holds real estate, the review includes a title and encumbrance check against the Property Register and the cadastral record, using the same methodology described on the property title-check page.

What happens after the report is delivered?

Findings that affect the deal are typically fed into negotiation of the transaction documents — price, warranties, indemnities, conditions precedent, or escrow — either directly through this practice or in coordination with your own commercial advisors and accountant.

Is due diligence only for large transactions?

No. The scope is matched to the size of the deal — a smaller transaction typically warrants a more focused review of the highest-risk categories rather than a full review across every area, and is scoped and priced accordingly.

Primary sources

Article numbers and current effective dates should always be verified against the consolidated text in force at the time of a specific transaction.

This page describes the general framework and categories of a legal due diligence review. It does not state findings, timelines or costs for any specific transaction, which depend on the actual target and must be confirmed once a matter is reviewed.