First, the use of overhaul fund needs to be handled according to the situation.

If the funds are not handed over to the industry Committee, they can only be used with the consent of more than 2/3 owners. If the ratio is not reached, the management organization will not agree to use it.

If the funds are transferred to the industry committee, they shall be used with the consent of the owners' congress.

Second, the act of signing on behalf of others without authorization or consent is invalid, and the act of signing on behalf of others damages the rights of others. The person who signed on behalf of others may ask the person who signed on behalf of him to bear the liability for compensation.

What you said, it is suggested to reflect to the competent department or local government and coordinate the solution.

Personally, this kind of dispute involves the legitimate rights and interests of both parties and is very complicated. If you think that those who don't sign have harmed their legitimate rights and interests, you can bring a lawsuit according to law, but it may aggravate the contradiction between the two sides. It's better to be cautious.