A few months after the devastating earthquake and tsunami that rocked Japan, life in the Tokyo offices of international law firms has more or less returned to normal. Expatriates who had fled the country en masse in March are now mostly back at work. Subways and trains are running normally again. And businesses are, well, back to business.

“Japanese companies have just been enormously focused on moving ahead with major transactions,” says Kenneth Siegel, the head of the Tokyo office for Morrison & Foerster, citing the firm’s recent work representing Toshiba in its $2.3 billion acquisition of Swiss power meter maker Landis+Gyr.