During the renovation, the property took a blank rectification notice, which I accidentally signed.

It doesn't matter. First, you didn't violate the rules. Second, even if you violate the rules, the property requires you to rectify. It doesn't matter if you don't rectify it. The rectification notice of the property is only to avoid their own responsibilities. For example, when you set up a building in violation of regulations and the urban management comes to the property for accountability, the property takes out a rectification list and says that the owner has been notified, then his responsibility will be gone. In fact, to put it bluntly, you can rest assured that there will be nothing for you to bear. I'm in the real estate business. Believe me, please adopt it.