Who are we ?

Robert MINES founded his firm in 2014 in Rodange after working for four years in a renowned law firm in Luxembourg City.

In parallel, Maître KOENER created his own in 2016 in Aubange. In order to meet the specific requirements of the Greater Region, Master MINES and Master KOENER have decided to join forces to create a cross-border study.

As of 1 January 2017, the Robert MINES law firm (Luxembourg and Belgium) began to assist its clients in local, cross-border and international litigation. In parallel, the firm has developed its advisory activity in the field of business law, company law but also in more specialised fields related to gambling and skill and, above all, art. This last activity has also given rise to a specific department, the Art Law Department, which assists clients in the acquisition and sale of art products as well as in various art investment operations.

Further developing their activities, Xavier KOENER and Robert MINES then decided to create separate legal structures for their offices. The firm then took the name “KOENER & MINES – Attorneys at Law”. Since 1 January 2019, the Rodange office has been operating as a limited liability company under Luxembourg law and the Belgian office as a limited liability company under Belgian law.

In parallel, KOENER and MINES have concluded a collaboration agreement with the Belgian law firm WLD Cabinets d’avocats S.p.r.l., which has offices in Liège and Antwerp. This collaboration will lead in the medium term to the establishment of the Koener & Mines group and the integration of the Liège and Antwerp offices. The opening of offices in Brussels is also planned for 2019.

With these establishments, KOENER & MINES will be able to assist its clients throughout Belgium, before all jurisdictions, in French, Dutch and German.

Finally, wishing to cover the entire territory of Luxembourg, KOENER & MINES intends to open a law firm in the judicial district of Diekirch in 2019-2020.

KOENER & MINES still has a large network of external collaborators. Not only does the firm regularly collaborate with law firms throughout Europe, but it also maintains privileged relationships with various professionals in order to provide useful assistance to its professional and private clients in all areas of their lives.

KOENER & MINES is also involved in the project to open other offices throughout Europe or beyond and is therefore always attentive to the emergence of young dynamic structures wishing to join the group.


You can contact us by sending us an email at info@rm-avocats.eu
Or you can also use the tool below:

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If you wish to come to one of our offices, the addresses are as follows:



33 Route de Longwy
L-4830 Rodange

Tel: (+352) 26 65 08 95
Fax: (+352) 26 65 08 97


Grand-rue, 45
B-6719 Athus

Avenue Huart-Hamoir 85
B-1030 Bruxelles

De Moystraat, 34
B-2018 Antwerpen

Rue Jondry, 2A
B-4020 Liege

Tel: (+32) (0)63 58 20 03
Fax: (+32) (0)63 58 22 03