

Réttur – Adalsteinsson & Partners
Client SatisfactionPraised as an ‘exceptional firm with a distinctive approach’, Réttur – Adalsteinsson & Partners’ practice assists companies with M&A, corporate governance, management incentive plans, regulatory matters, and a wide array of corporate law related matters. The practice is co-led by Sigurður Örn Hilmarsson, who specialises in domestic and cross-border commercial litigation and insolvency proceedings. He is supported by Stefán Örn Stefánsson, who focuses on the financing, acquisition and sale of companies, and Oddur Ástráðsson, who is well-versed within corporate and commercial law, tax, and labour law. Key associate Alexander Hafþórsson handles high-profile corporate-related matters.
Testimonials
Collated independently by Legal 500 research team.
- ‘We have primarily worked with Sigurður Örn Hilmarsson and Stefán Örn Stefánsson from the firm. Both have handled their responsibilities with the utmost professionalism. In recent months, Stefán has been our main point of contact, and his contributions have been incredibly valuable to the company. I can’t recommend him highly enough.'
- ‘I have been in close contact with the team at Réttur and I find myself lucky to have found them, very customer oriented, professional and fair. Réttur helped me every step of the way in the process of selling my company and I always felt that I had a 100% dedication from them, always ready to and quick response.'
- ‘Stefán Örn Stefánsson has stood by my side every step of every way that I have taken, very easy communications and professional advice and work.'
- ‘Rettur is an exceptional firm with a distinctive approach. What truly sets their team apart is their ability to handle complex issues promptly and effectively. Their proactive approach and deep understanding of the financial aspects of legal matters are impressive. We look forward to choosing them again and again.'
- ‘The team at Rettur have worked out all documents for a few M&A deals. They have proved to be very professional and the deal has gone through with no problems.'
- ‘We have been working with the firm for several years now. They respond to our matters promptly and make us feel well taken care of. All the work they have done for us, from agreements to other legal aspects of our operations, has consistently been of the highest quality.'
- ‘We highly appreciate the team for their client-focused service. Their teamwork and results-oriented approach are also noteworthy from a client's perspective, which is always pleasant to see.'
- 'Stefán Örn Stefánsson and Alexander Hafþórsson. Young, up and coming lawyers with experience in M&A belying their relatively few years of practice. Disciplined and always available. They get the job done.'
Key clients
- Landsvirkjun
- Arion Banki hf.
- Deutsche Lufthansa AG
Work highlights
- Advised Icelandic Water Holdings hf. (and its founders) on a large-scale sale of a majority stake to foreign investors, which included its financial restructuring and securing a $10m convertible from BlackRock.
- Advised Monerium ehf. in respect to $2m bridge financings by way of issuance of convertible notes, and on various cross-border commercial agreements concerning its expansion abroad.
- Advised GODO (Flekaskil ehf.) on a M&A transaction where GODO acquired the travel software segment from Origo hf.
Lawyers

Practice head
The lawyer(s) leading their teams.
Sigurður Örn Hilmarsson, Stefán Örn Stefánsson, Oddur Ástráðsson