吉田雄介 — gyoseishoshi (Certified Administrative Procedures Legal Specialist)
Your inheritance and will enquiries are handled by 吉田雄介, a gyoseishoshi at エールZEAL国際行政書士事務所. Whether you are just starting to gather documents or already know which work you would like to request, please tell us about your current circumstances.
Gyoseishoshi registration number: 22130594

Identify what to do next and what needs checking first
Before preparing inheritance documents, it is important to check family relationships, whether there is a will, the assets involved and the progress of any discussions. We distinguish what is known from what still needs to be confirmed, then explain the support you may need.
Before you engage us, we review the work our office will handle, professional fees, expenses and matters that require separate procedures. Please tell us if a term is unfamiliar or if you are unsure whether to request a particular service.
Professional qualification and services
As a gyoseishoshi, we assist with collecting family registers (koseki), identifying heirs, preparing estate division agreements based on agreed terms, and preparing wills. For inheritance procedures involving bank deposits or vehicles, we also review the receiving institution and available documents before explaining the scope of assistance.
If a dispute already exists, or a specialist assessment of tax or registration matters is needed, a different professional will be responsible for those matters.
Our support and the roles of other professionals
- Gyoseishoshi: Researching family registers and other records, assisting with will preparation, and preparing inheritance documents based on agreed terms.
- Judicial scrivener (shiho-shoshi): Registration of inherited real estate and preparation of documents for submission to family courts and other courts.
- Tax accountant (zeirishi): Individual inheritance tax advice, preparation of tax documents and representation in tax filings.
- Attorney (bengoshi): Inheritance disputes, negotiations, individual legal assessments and representation.
Depending on the procedure, you may need to engage another professional. Please confirm the scope of work, who your contract is with, the fees and how documents will be shared in each case.
References on professional roles: gyoseishoshi guidance on wills and inheritance (in Japanese), guidance on judicial scriveners’ work (in Japanese) and National Tax Agency guidance on tax accountants’ work (in Japanese).
Office information
- Office name
- エールZEAL国際行政書士事務所
- Gyoseishoshi
- 吉田雄介
- Registration number
- 22130594
- Address, as written in Japanese
- 〒355-0811 埼玉県比企郡滑川町羽尾3874-1
- Telephone
- 0493-59-9578
If you would like a consultation at the office or by telephone, please confirm a date and time in advance. Consultation methods and the areas we can assist with will be checked according to the matter.
If you would like to visit the office
When arranging an appointment, tell us what you would like to discuss, who will attend and your preferred date and time. Please also confirm directions and, if you are driving, where to park before your visit.
If you would prefer a visit to your location, postal correspondence or an online consultation, tell us where you live and your preferred method. We will explain the available methods after checking their conditions.
Location and consultation methods (in Japanese) · The consultation process

Before contacting us
Can I consult you before all the documents are ready?
Please start with what you currently know about your circumstances. We will confirm which documents are needed according to your enquiry.
The heirs cannot agree. What should I do?
If there is a dispute or negotiation is needed, please consider consulting an attorney first. A gyoseishoshi cannot represent heirs in negotiations or dispute resolution.