Is it permissible to continue in a housing cooperative that requires a certificate of non-ownership of housing in the area, knowing that the majority of members own housing and obtain the certificate through illicit means, and that I own an apartment and wish to improve my housing situation?

It is permissible to violate laws that prevent or restrict access to suitable housing if they do not serve an apparent interest, such as collecting money unjustly. It is also permissible to circumvent them as long as this does not cause harm. However, if there is an apparent interest in these laws, such as limiting residential spaces, then they must be adhered to. This falls under the category of the ruler restricting what is permissible for the public interest.