The circuit in my house is broken, so I need an electrician to repair it. Maintenance must cut off the main switch of the whole building, and the merchants don't want to sue me. How to solve it?

It's unreasonable to sue you. You should sue the property manager and the electrician. Every family has a master switch. Why did you pull the switch of the whole building? Explain that the electrician sent by the property is not a real electrician. Even if you can't work live, you can basically cut off the power supply at home for maintenance. There is something wrong with the circuit in your home. How to repair the electrician hired by the property is his business, not yours. Then again, if you violate the rules and owe money for electricity, the property will immediately cut off the power for you alone, and he will never cut off the power for the whole building. Don't you think so? It is necessary to repair it with the property.