Helmer Tieben. Your lawyer in Cologne
The Cologne law firm, based in Cologne's Südstadt district, advises on Tenancy Lawlaw, aliens law and in Employment and Labour Law. If you have a best lawyer tenancy law Colognean experienced Contract law lawyer Cologne or a reliable Lawyer Cologne Mr Helmer Tieben will be happy to assist you.
Your lawyer in Cologne
The Cologne law firm offers legal advice for private individuals, freelancers and medium-sized companies. Our Online law firm also offers flexible consulting options via the Internet, ideal for clients who need a Lawyer online would like to make use of.
The offices are located in Cologne's Südstadt district near Chlodwigplatz and can be easily reached by car or tram from all parts of Cologne.
In order to provide you with comprehensive advice, Mr Tieben works closely with other lawyers in Cologne, tax advisors, business consultants, notaries and insurance specialists. This co-operation strengthens the Cologne law firm its interdisciplinary expertise and guarantees comprehensive legal support.
Here you can also find out about legal fees. It is also possible to obtain legal advice online via our online law firm. This digital solution of our Online law firm enables you to have direct contact with your Lawyer Colognewithout travelling in person.
Legal advice online - your flexible solution
Our law firm offers you the opportunity to obtain legal advice online. This form of consultation is efficient and saves time, especially if you cannot come to Cologne in person. You receive the same legal quality as in person, only digitally and from any location.
Labour law comprises the main legal norms that define the rights and obligations of an employee. As Lawyer for labour law Cologne Mr Tieben competently assists his clients with labour law issues. He is recognised as an experienced Lawyer labour law Colognewhich provides comprehensive advice to both employees and employers.
Tenancy law covers both the renting and letting of residential and commercial property. As an experienced Lawyer for tenancy law Cologne Mr Tieben advises tenants and landlords in all matters relating to tenancy law.
The Immigration Law includes all legal regulations for the entry, residence and termination of residence of people who are not German.
The Social Law This includes all legal norms under public law that serve to protect against social risks such as illness, the need for care, unemployment and lack of income, old age or death.
15
Years of experience as a lawyer
3
Areas of Expertise
1
E-bike
2000+
Clients
500+
Court dates
Lawyer Tieben
Helmer Tieben studied law at the University of Cologne and also completed a Master's programme at the University of Melbourne in Australia, graduating with a Master of International Tax.
Since being admitted to the bar in Cologne in 2005, he has worked for a large auditing firm and a large German transport company before becoming self-employed.
Tieben's areas of practice include the following Tenancy Law, Immigration Law and the Employment and Labour Law. His clients include private individuals, medium-sized companies and the self-employed. He also advises as Contract law lawyer Cologne clients in contract drafting, breaches of contract and claims for damages.
Should you require legal representation, please contact Mr Tieben on the following telephone number 0221 - 80187670 or by email: info@mth-partner.de
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Client testimonials
We were recommended Mr Tieben and were successfully represented by him in a tenancy law matter. We felt that we were in good hands right from the start. Very competent, personable and easy to reach by phone.
GC. ( Tenancy law )
Very competent, reliable, fast and friendly. All my concerns were dealt with carefully. Absolutely recommendable!
S.K. ( Tenancy law)
We have used Mr Tieben's advisory services several times, particularly in the areas of internet law and labour law. Mr Tieben has always shown himself to be reliable and very competent. Conclusion: definitely recommendable.
V.M. ( Labour law)
Latest blog posts

German citizenship by descent: Guide for applicants abroad
By lawyer Helmer Tieben, LL.M. (International Tax) - Cologne Bar Association (admitted since 2005) - specialising in immigration and nationality law Last updated: February 2026 Definition: German citizenship by descent (ius sanguinis) means the automatic acquisition of German citizenship at birth if at least one parent has German citizenship at the time of birth. Legal basis: Section 4 of the Citizenship Act (StAG). The place of birth is irrelevant. The most important facts at a glance You may already be a German citizen without realising it. Nationality is automatically transferred from parent to child at birth. Dual nationality has been permitted without restriction since 27 June 2024. It is not necessary to give up the previous nationality. The chain may be interrupted. If an ancestor was naturalised in another country before the birth of their child, the chain of German citizenship ended at this point. The 2024 reform does not repair past losses. There is a deadline. In the case of historical gender discrimination (German mother before 1975, unmarried German father before 1993), Section 5 StAG allows acquisition by declaration - but only until 19 August 2031. No proof of language skills. No residence in Germany required. Paths to German citizenship - overview Path Who is entitled Language / residence Deadline Fee Descent (§ 4 StAG) Child of a German parent

Tenancy law: personal use also for the second home - is „culture and family“ enough?
LG Hamburg confirms: Use as a second home for cultural visits and family gatherings can also justify personal use within the meaning of Section 573 (2) No. 2 BGB.

Tenancy law: Keys in the letterbox - flat effectively returned?
LG Essen: The posting of the keys to the flat in the landlord's letterbox constitutes the return of the rented property. Surrender of possession is thus manifested externally.
By Helmer Tieben, LL.M. (International Tax) - Cologne Bar Association (admitted since 2005) - Specialising in immigration and nationality law Last updated: February 2026 Definition: The German...
LG Hamburg confirms: Use as a second home for cultural visits and family gatherings can also constitute personal use within the meaning of § 573 para. 2 no. 2...
LG Essen: The posting of the keys to the flat in the landlord's letterbox constitutes the return of the rented property. Surrender of possession is thus manifested externally.
Frequently asked questions (FAQ)
1. in which areas of law is the Cologne law firm active?
The Cologne law firm of lawyer Helmer Tieben specialises in employment law, tenancy law, immigration law and social law. As an experienced lawyer in Cologne, Mr Tieben advises both private individuals and companies on legal issues.
2 How can I make an appointment with a lawyer in Cologne?
Appointments can be made by telephone, email or conveniently via the online law firm. This means that clients also benefit from legal advice online, without having to travel long distances.
3. is it possible to obtain legal advice online?
Yes, you can obtain legal advice online via our online law firm. This digital solution is particularly suitable for clients with little time or from other regions.
4 Where is the Cologne law firm located?
The offices are located in Cologne's Südstadt district near Chlodwigplatz. The lawyers in Cologne are easily accessible both by public transport and by car.
5 Who are the firm's clients?
Clients include private individuals, the self-employed and medium-sized companies. As one of Cologne's experienced lawyers, Helmer Tieben advises clients individually and in a solution-orientated manner.
6 What distinguishes Mr Tieben as a lawyer for labour law in Cologne?
As Lawyer for labour law Cologne Mr Tieben has many years of experience and in-depth expertise. He assists employees and employers with dismissals, Cautions, employment contracts and all other labour law matters.
7 Who is my contact person for tenancy law issues?
Mr Tieben is your competent partner for all matters relating to tenancy law. Lawyer for tenancy law Cologne We are at your side, be it for cancellations, rent increases or disputes with the landlord.
8. with which other specialists does the law firm co-operate?
For comprehensive advice, Mr Tieben works closely with other lawyers in Cologne, tax advisors, business consultants and notaries. As a result, clients receive comprehensive legal and economic support. Our Cologne law firm also offers online appointments for clients who require fast and location-independent advice via the Online law firm wish.