Effectiveness. Pragmatism. Business.
Welcome to JLSW Law Firm.

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Our work effectiveness is measured by our clients' success. Whenever we can, we are proud of their achievements. Please feel invited to glance at our selected projects.

International relations

Office of Legal Counsels in Poznań

The JLSW Law Firm in Poznań provides comprehensive legal services. Our key goal is, above all, the satisfaction and success of our clients. We provide services in various areas of law. Our office guarantees high-quality service, efficiency and timeliness. Understanding your needs, we are always available by email and telephone, and you are also welcome to visit us personally at the Office of Legal Counsels in Poznań.

Office address:  ul. 28 Czerwca 1956/ No. 406,
61-441,  Poznań
Tel.: +48616734520

Office of Legal Counsels in Warsaw

The JLSW Law Firm in Warsaw provides legal assistance in various areas of law. The expertise of the team allows us to provide services for businesses as well as individual clients. We are guided by the interests and satisfaction of our clients by being discreet, professional and efficient. We are at your service – feel free to visit us personally in the office of Legal Counsels in Warsaw - City Centre.

Office address:  Rondo Daszyńskiego 2b,
00-843,  Warszawa
Tel.: +48221189227

About us

The law firm JLSW Janaszczyk Lis & Partners Legal Counsels Limited Partnership means comprehensive and effective legal services supported by many years of experience and implemented projects in the areas of transaction consultancy, civil law, procedural and administrative law. Our law firm offers wide-ranging legal services and maintains the highest standards of service, punctuality, professionalism and discretion.

We always do our best to be constantly at your service. If you need to meet us in person, we have offices in both Poznań and Warsaw to which you are always welcome.

Transaction Consulting

What we offer includes legal advice as part of the broadly understood M&A consultancy. We advise owners who are selling enterprises and investors interested in buying or financing. We offer negotiation of preliminary documents as well as assistance in managing the course of transactions.

Corporate and commercial law

We offer comprehensive legal services for entrepreneurs and business entities at any time of operation. Our service range includes ongoing advice in the field of corporate law, business support, assistance in starting a company and transforming business activities.

Investment process and property

Our office guarantees comprehensive legal assistance in the field of all types of property processes. Our experts participate in negotiations, prepare and review draft contracts, and advise during the implementation of construction investments and their settlement.

Public procurement and administrative law

As an administrative law firm, we provide legal assistance in public procurement procedures. We offer full legal services for the contracting authority and assist contractors in preparing bids for public procurement procedures.

Civil and procedural law

Our civil law office provides legal support during mediation and representation in court cases as well as preparation of lawsuits, applications, appeals, complaints and other pleadings. We also provide an analysis of the chances of pursuing claims in court.

Labour law

Our law firm offers comprehensive legal services for medium and large enterprises in the field of individual and collective labour law. We also offer audits of employee matters and can prepare reviews of employee documentation.

IP and Personal data protection

Professional advice in the field of personal data protection, intellectual property law and competition law. Comprehensive legal support, management and analysis of the portfolio of intellectual property rights.

Energy sector

An energy law firm offers comprehensive legal assistance to companies in the energy sector, as well as to entities that are about to start operating in this field. Consultancy services in the field of energy law, preparation of analyses and audits.