Threats from one owner in apartment

We are trying to form an association for our newly built apartment. As nobody wanted to become part of it, we somehow managed to get few volunteers who were interested in making the association. As there was no competition for any of the post, each post was assigned to a member of committee and those who were left with no post were supposed to work as committee members only. No election were held inside our residential complex but all names along with the post bearers were shared in OWNERS email group as well as communicated physically by going door to door. To initiate the association formation we took majority OWNER's consent by asking them to SIGN on the memo or sending their consent in email who couldn't be physically present for some reason. After this we initiated process of discussing APARTMENT BY-LAWS with all the OWNER's and shared the draft version in email to get everbody's suggestion and review comments. In addition we conducted one meeting within apartment premises to further discuss BY-LAWS and collect OWNER's concern. As very few people attended the meeting and there was no comment from any of the OWNER beside a lady who pointed out numbering mistake which looked like the doc is missing some pages which was communicated to the concerned lawyer who shared the BY-LAWS in first place, we gave 24 Hour deadline to OWNER's in order to share their concerns (if any) via OWNER email group. Once past the deadline we gave a go ahead to our lawyer to file application for Association formation with the given copy of BY-LAWS and the members whom name were shared in MEMO. Now the lady who pointed out the numbering mistake woke up after few months and saying the final copy of the BY-LAWS was not shared with her and association is keeping her in dark as there is no transparency. Committee members tried to explain it to her that there was nothing changed beside the numbering mistake that was pointed out by her so there was no need for re-review. She just couldn't understand this and thinks there was some page missing in BY-LAWS and trying to provoke OWNER's with false accusations. She and her husband are well known in our OWNER's whatsapp group for using very bad & rude language and blaming people who are volunteering to manage things in the premises. When few members tried to calm her down and gave explanations, other OWNER's also came in support for the association committee members. Now with the fear of being left out alone in society she is threatening committee members to file a defamation suite by saying that we mocked her in whatsapp as she is a female. Whereas nobody ever used any foul language against the lady or her husband and were conversing very politely. She even tried to malign people based on their origin of state and passed racial comments. 1. Considering that She has also Signed on the MEMO, are we good to go and register the association? 2. What are our options if she files a defamation suite against committee members?