I used *** to drill air-conditioning holes in the wall and my neighbor said it violated the property rights law. Is this correct?

Oh, what about the property rights law? It’s just that the law is used incorrectly. That is, if your air conditioner’s big eye is on a common wall, are you installing expansion screws or air conditioning ducts? If the expansion wire is used, it will not be used. Don't worry, if it's an air-conditioning duct, usually your neighbors won't come after you. Instead, they will cut off your air-conditioning duct directly, thinking that you have crossed the line. The more stubborn people won't let you pretend even if you lose money.

I think you should have a problem with the expansion wire when installing the indoor unit, not the pipe. Are there any specific photos?

Generally, when installing a meter box or cable TV box on the wall of a house, the homeowner must be notified and financially compensated