I'm currently reading 極主夫道 and I'm not sure I understand "十力所". Do you have any ideas? Is it 10 powerful people of the office or something else? Thank you!
箇所(カ所、ヶ所) means a place, a spot, a point, a part.
抗争相手の事務所を十カ所潰した means "The yakuza made ten enemy (Japanese mafia) offices close", "The yakuza destroyed ten enemy (Japanese mafia) offices".