stop Condominium Treasurer from making decision without the vote of property owners

the person acting as treasurer of the condo association, has against by laws, continued to make decision about the use of monies, not belonging to her.
1. increasing association fees without consult of other office members
2. continues to raise condominium association fees unnecessarily without hoding a meeting or meetings involving all owners.
3. the treasurer continues to make decision without consulting with owners or office holders to her intent.
4. allowed for the complex to be changed to a rental type property without full cooperation of all condominium owners.