Boutique Law Firm for M&A, Corporate Law & Shareholder Disputes in Vienna
Focused on business-critical situations: company transactions, restructurings and high-stakes conflict resolution. Pragmatic, commercially minded and delivered through direct partner involvement.
Mergers & Acquisitions (M&A)
Buying or selling a business is a once-in-a-lifetime decision for most parties. For us, it is core operational work. We support share deals and asset deals within the Austrian mid-market — from the letter of intent to closing.
When clients engage us:
- Before signing an LOI, to structure key commercial terms correctly.
- During due diligence, to identify risks and translate them into contractual protections.
- During SPA negotiations, where warranties, liability caps and purchase price mechanisms become decisive.
- After closing, when earn-out provisions, non-compete clauses or post-closing adjustments raise legal questions.
Corporate Law
The legal foundation of your day-to-day operations. From tax-efficient holding structures to robust shareholder agreements. We create legal frameworks that do not just look good on paper but effectively protect your private assets when it matters.
When clients engage us:
- Formation and structuring of GmbH, AG, FlexCo and partnerships
- Shareholder agreements and investment agreements
- Capital measures, participation models and financing structures
- Corporate reorganisations under Austrian reorganisation law (mergers, demergers, contributions)
- Holding structures and corporate group setups
- Ongoing corporate housekeeping (resolutions, commercial register filings)
Shareholder Disputes & Director Liability
Conflicts between shareholders rarely arise overnight. They typically develop through diverging expectations, denied information rights or blocked resolutions until normal business operations are affected. Acting too late in this phase often results in lost options and economic value.
When clients engage us:
- A shareholder is excluded from information or decision-making processes.
- Two shareholders block each other (deadlock).
- A managing director is removed or faces D&O liability claims.
- A shareholder separation becomes unavoidable: valuation, purchase price, non-compete clauses and transition arrangements must be negotiated.
Private Equity & Investments
Investment strategies require advisors who understand not only individual transactions but the logic of platform strategies: fast decision cycles in add-on acquisitions, consistent contractual structures across multiple acquisitions and an exit structure designed from day one.
We support private equity funds, platform companies and management teams in implementing growth strategies under Austrian law.
When clients engage us:
- Buy-and-build strategies: legal execution of serial acquisition models
- Shareholder agreements (SHA), co-investment structures and tag/drag clauses
- Management participation programmes
Client Profile
We selectively accept mandates where corporate and transaction expertise creates measurable economic value for our clients:
- Mid-sized entrepreneurs preparing transactions, succession solutions or strategic restructurings.
- Shareholders and managing directors facing conflicts, liability exposure or shareholder separation scenarios.
- Investors and private equity funds structuring investments, executing acquisitions or implementing platform strategies.
International Law Firm or Specialised Boutique?
In mid-market transactions and corporate structuring matters, the question often arises whether an international law firm or a specialised boutique provides the better fit.
International Law Firm
Work primarily handled by associates, supervised by partners
Changing points of contact depending on availability
Cost structure typical of large international firms
Strong in transactions exceeding EUR 50 million
Broad service coverage across all legal areas
Boutique (Tiefenbacher Law)
Direct involvement by the owner
One dedicated contact throughout the transaction
Large-firm quality at economically efficient fee levels
Strong in transactions betw. EUR 400,000 and EUR 50 million
Clear focus on corporate law, M&A and dispute-driven situations
For transactions and dispute values exceeding EUR 50 million, the extensive personnel structure of large international law firms is often required. However, in the traditional mid-market range (EUR 400,000 to EUR 50 million), their overhead costs frequently consume unnecessary budget.
As a specialised boutique, I offer contractual precision comparable to large international firms — combined with agility, commercial judgement and direct partner involvement without changing points of contact.
Frequently Asked Questions
Whenever multiple individuals must structure business decisions, liability risks or participation rights in a legally reliable manner.
Typical triggers include:
- forming a company with multiple shareholders
- onboarding an investor
- implementing corporate restructurings
- resolving shareholder conflicts
- buying or selling a company
Early legal involvement in these situations is typically more cost-efficient than managing the consequences of unresolved issues later.
The initial assessment by telephone or e-mail is free of charge and without obligation.
We clarify whether your matter falls within our advisory focus and what next steps may be appropriate.
Chargeable legal services only commence once you have formally instructed us and a transparent fee arrangement has been agreed.
After contacting us by telephone or e-mail, we review your enquiry and respond within 24 hours on business days.
During the initial consultation, we assess the starting position, determine whether and how we can support you,
and discuss the applicable terms of engagement. There is no obligation — the initial assessment remains free of charge.
We provide legal advice in German and English. Contracts and transaction documentation can be prepared in both languages.
For cross-border transactions, we coordinate with trusted local law firms in the relevant jurisdictions where required.
CONTACT
Confidential initial consultation
Complex corporate matters and M&A transactions do not permit delays. I am available to provide an initial confidential assessment and to coordinate your strategic legal approach.
Our Guarantees:
✓ 100 % attorney-client privilege
✓ Strict conflict of interest clearance
✓ Discrete preliminary review
- +43 660 3854856
- kanzlei@tiefenbacher-law.at
- Mario Tiefenbacher
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Mario Tiefenbacher LL.M.
Tiefenbacher Law
Sobieskigasse 35/1/20, 1090 Vienna, Austria
