Ohsun Ko appears in the October 2025 immigration-lawyer directory published by the Korean Bar Association. The source connects the practitioner with a Seoul office and lists language support including 한국어, English, 汉语(HSK 3급). Passports Forum uses that public record to identify the practice, while leaving service quality and results to direct client evidence.
The KBA listing associates this practitioner with Immigration Law, Residency and Visa Status, Nationality and Citizenship, International Family Law, Criminal Defense for Foreign Nationals. Before relying on the profile, ask whether the office handles the precise visa, residence, nationality, refugee, or foreign-national matter involved and whether another professional will perform part of the work. The engagement letter should identify filing tasks, exclusions, expected milestones, and charges outside the quoted legal fee.
Korea Immigration Service administers D-8 corporate-investment status under the Immigration Control Act, and company formation by itself does not confer residence or work authorization. A person considering Ohsun Ko in Seoul should confirm current eligibility, the correct immigration office or online channel, document-validity rules, and whether counsel will handle requests for supplementation or refusal review.
Passports Forum presents this profile as a research starting point, not a recommendation. Useful reviews identify the matter, the lawyer who handled it, fee clarity, document checking, response times, and whether government delays or legal risks were explained candidly.