Those who are in charge of the mosque are falling short in their religious commitment; should he stop praying there?
Question

                In my community there is a "commitee" at the masjid which makes a majority of the Community decisions.

However Very few of them even Adhere to the Sunnah or Sharia. And I know personally some of them to be sinners and there are also women who attend who dont wear correct hijab. The only time I see them at the masjid in when they have a meeting and on Jummah.

should I continue to go to the masjid or try to start a new masalah?
Praise be to Allah. 
          You have to continue going to the mosque, and beware 
          of causing division in the jamaa’ah of the mosque. Try to reform it 
          from within, by preaching, advising sincerely and maintaining good relations 
          without doing anything that is haraam. Perhaps if you submit suggestions 
          written in a gentle and kind manner, this will help to improve the situation. 
          Be optimistic, for things may be better in the future. This committee 
          or some of its members may change and become more religiously committed 
          and better; you may even be one of them. We ask Allaah to give you and 
          us strength.