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
Check German citizenship from abroad (§5 StAG / descent) - preliminary examination 2026
Citizenship law is complex - and many people do not know whether they are entitled to German citizenship because no one has ever carefully examined the question. This form is intended to provide initial guidance. It automatically analyses your details and shows whether one of the relevant legal bases - such as descent, historical disadvantage or Nazi persecution - could apply to your situation. This saves you the time and effort of a full legal examination as long as it is not yet clear whether there is any basis at all. The result is non-binding and only serves as an initial assessment. The following information explains what it means and what limits it has. Preliminary result (non-binding) Instructions for using this form Please read these instructions carefully before submitting the form. What this form does - and does not do This form is intended as an initial guide. It automatically analyses your information and shows whether one of the possible legal bases for acquiring German citizenship could apply to your situation. An individual legal examination does not take place. In particular, the following legal bases may apply: § 4 StAG - acquisition of citizenship by descent from a German parent. Whether the chain is interrupted can be determined solely on the basis of form entries.
Rent reduction calculator - Calculate possible rent reduction online now
Calculating a rent reduction in the event of mould, noise or heating failure The heating breaks down in winter. Mould is spreading in the kitchen. Construction work has been going on in the house for months and there is no peace and quiet. Situations like this are stressful for tenants. Many then ask themselves the same question: Can I reduce the rent - and if so, how much? Our rent reduction calculator will give you a realistic initial estimate. Quick, free and without registration. When can the rent be reduced? A rent reduction can be considered if there is a significant defect that noticeably restricts the use of the flat. This includes, among other things Mould infestation Heating failure No hot water Moisture or water damage Severe and persistent construction noise Defective windows Lift failure on higher floors It is important that the defect was not caused by the tenant themselves and that the landlord was informed of it. The landlord can only react once he has been informed. The rent reduction is generally automatic if there is a significant defect. Nevertheless, you should not act too hastily. Too high a reduction can lead to payment arrears and, in the worst case, result in cancellation. How does the rent reduction calculator work? Our calculator is based on published case law on rent reduction. In many cases, courts have decided which reduction rates are appropriate for certain defects.
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
Citizenship law is complex - and many people do not know whether they are entitled to German citizenship because no one has ever carefully considered the question.
Calculating a rent reduction in the event of mould, noise or heating failure The heating breaks down in winter. Mould is spreading in the kitchen. The house has been...
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...
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.
