Most citizenship by descent claims do not need a lawyer. They need three or four civil documents and a form that the register takes directly from the applicant, and in four of the five countries this site covers that is the ordinary route rather than the shortcut.
Four situations are different, and in each of them a lawyer changes the outcome rather than the paperwork: a claim that runs through a court, a grant that is discretionary, a restoration claim where something has to be established rather than documented, and a contested loss. Everything below sorts your case into one pile or the other.
The claims a register takes on a form
In each of these, the authority named is the one that decides, and each publishes its own instructions for an applicant filing without representation.
Ireland — the Foreign Births Register. The Department of Foreign Affairs runs the application itself, and its Foreign Births Register page sets out the documents and the current fee. What decides an Irish claim is whether the documents establish an unbroken chain to an Irish-born grandparent, and whether a registration was made before the next birth — a question of records, not of argument. Registering on the Foreign Births Register walks the filing itself.
Canada — proof of citizenship. Immigration, Refugees and Citizenship Canada decides whether you are already a citizen and issues the certificate that proves it. Since Bill C-3 passed on 15 December 2025 the question for a second-generation applicant is a factual one — whether the Canadian parent spent at least 1,095 days in Canada before the birth — and it is answered with records of presence, not with submissions. Checked on 5 September 2026 against IRCC’s eligibility page, last modified 18 February 2026. Applying for proof is the procedure.
Germany — the certificate of citizenship, and the declaration. The Bundesverwaltungsamt publishes its own English guidance for the Staatsangehörigkeitsausweis, and the declaration route under section 5 of the Staatsangehörigkeitsgesetz — opened in August 2021 for ten years — is a declaration the applicant makes, not an argument a representative wins. The section 5 declaration has its own post because its window closes.
Poland — confirmation by a voivode. Potwierdzenie posiadania obywatelstwa polskiego is described by gov.pl on its service page, and the decision is a finding on the record. Polish claims are the ones in this list most likely to need help — but the help is usually an archive search rather than a lawyer, and those are different professionals with different fees. The Polish line explains why the archives decide so many of them.
Italy — consular recognition. Where the line is inside the limit the decree-law of 28 March 2025 set — generally an Italian-born parent or grandparent — the filing is a consular or municipal one, and the Ministry of Foreign Affairs publishes the procedure on its citizenship pages. The hard part of an Italian claim is usually the appointment and the documents, not the law.
The four claims that genuinely need one
1. A claim that runs through a court. An Italian line that passes through a woman for a birth before 1 January 1948 is not decided by a consulate; it is a judicial matter, and that requires an Italian lawyer. This is the clearest case in the whole niche of a professional being necessary rather than convenient, and the 1948 case is entirely about it.
2. A discretionary grant. Where an authority may grant rather than must recognise, the quality of the submission matters, and the outcome is never guaranteed by anyone. Ireland’s naturalisation route based on Irish associations is discretionary; so are several registration provisions in British nationality law. If the rule you are relying on contains the word “may”, you are in this pile.
3. A restoration claim where something must be established. Restoration under Article 116(2) of the Basic Law and section 15 of the Staatsangehörigkeitsgesetz depends on facts about persecution between 1933 and 1945 being made out on records that are often incomplete. That is an evidentiary exercise, and it is the point for a lawyer.
4. A contested loss. An authority has taken the view that an ancestor lost the citizenship — by naturalisation, by foreign military service, by a marriage — and you disagree, or the record is ambiguous. Disputing a finding is legal work. The break cases describe the losses; contesting one is not a form.
How to tell which pile you are in, in four questions
Answer these before you speak to anyone, because the answers decide who you should be speaking to.
Is the deciding fact a document or a judgement?#
A date on a certificate, a naturalisation record, days of presence: document. Whether persecution occurred, whether a loss took effect, whether a discretion should be exercised: judgement. Documents go to a register. Judgements need representation.
Does the rule say the authority must, or that it may?#
“Is entitled to be registered” and “is a citizen” are findings. “May be granted” is a discretion, and discretions are argued.
Is the forum a register, a consulate, or a court?#
A court means a lawyer admitted in that country, always. A consulate almost never does.
Is the obstacle the law, or an archive in a language you cannot read?#
If it is the archive, the right professional is a researcher or a certified translator, and a law firm will usually subcontract exactly that and add a margin to it.
What a service does that you can also do
Consultancies and firms in this field bundle work of three kinds, and it is worth separating them before agreeing a fee, because only the first is legal work.
- Legal work. Court filings, disputed losses, submissions on a discretion.
- Administrative work. Booking appointments, ordering certificates, arranging translations and stamps, following up. This is real work and it takes real time. It is not legal work, and it is priced very differently depending on who does it.
- The eligibility opinion. Which is the part to be careful about, because it is given before any fee is agreed and by someone whose income depends on the answer being yes.
Nothing here says a service is not worth paying. A great deal of this is tedious and slow, and paying somebody to do the tedious half is a reasonable decision. It says only that the eligibility question — does the line hold — is the one question you should have answered for yourself first, from the rules, in writing, with dates.
How to read a quote
Four things a quote should tell you plainly, and you should ask for each in writing if it does not:
- What the fee covers, separated into legal work, administrative work and disbursements — the register’s own fee, translations, certified copies, courier.
- Which authority will decide, and in which country. If the answer is vague, the route has not been settled.
- What happens if the claim fails, and whether any part of the fee is returned. A claim that cannot succeed on the rule should never have been quoted at all.
- What they say the rule is, with its date. If a quote describes Italy’s position without reference to the 2025 change, or Canada’s without reference to Bill C-3, it is describing a rule that no longer decides your case.
The short version
If your line is documented and the rule is a rule — Ireland, Canada, Germany’s ordinary descent and declaration routes, Poland where the archives are cooperative, Italy inside the current limit — you do not need a lawyer for this, and the register will take your form. If your route is a court, a discretion, a restoration or a contested loss, you do, and that is the point to find one admitted in that country.
The single most useful thing you can do before either is establish whether the line holds at all. The grandparent rule in six countries is the comparison; where the line breaks is the list of ways it ends.