I am a Trusted Account holder and have been using MtGox for more than 3 years.
Quite some BTC coins stuck now for 6 days. USD stuck for more than 5 months. No response to multiple support tickets. A tweet to Mark Karpeles with my support ticket reference got no reply.
Can anyone recommend a lawyer, preferable Tokyo based, to formally notify MtGox and its directors and put them in breach ?
If you're in the US, you can sue them in Delaware. Mt. Gox registered with FinCen, established a US "office" in Delaware, and is thus subject to US law.