Legal Consultation for Dual Citizenship (English support needed)

This is a throwaway account as I don't need this associated with my main account. I've contacted an immigration law practice to ask for a consultation on dual citizenship (Japan/non-JP) questions, and I was politely told that they don't handle citizenship questions. Rather than blindly contacting immigration-focused law firms, I thought I'd see if anyone has a recommendation for a law firm who is able to consult on dual citizenship matters. I would need the firm to have English support.

Please note that I'm not looking for legal advice on Reddit so would like to avoid any comments on dual citizenship laws of Japan. I've read them all. I have questions for a specific situation and I'm not sharing details. I'm asking only for recommended firms that can handle dual citizenship consultations and have English support. I'd appreciate any leads!

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