Can I sue my boss for not paying me completely,he only pays me in payments,he doesn't pay for my overtime and he pays me in cash

You should consult with legal counsel to make sure you are protected.

Who is responsible for damage caused by sump pump being turned off amid home-reconstruction?

You may want to try reporting to your insurance company.

Do a subpoena. You can find law known contact information from the company itself to help you locate them.