get as much evidence as you can against the 'shaikh'. once you have enough evidence that cannot be refuted then expose this 'shaikh'. people are not safe from him so he MUST be exposed so others do not fall into his trap. inshallah if you get sufficient evidence to expose him then you will be safe as he will not have any supporters left. if he is a well known 'shaikh' with students and mureeds then there is no point going to other ulama for help as i doubt you will get any. and also if you reveal to others that you are opposed to this 'shaikh' then chances are you will put yourself in danger. so it is best not rely on anyone elses help. you will not get any. i have been in opposition to some shaikhs and their mureeds (on a lower scale) and found that even my life long friends turned their backs on me. some others that i know of had had it much worse than me when going into opposition with a shaikh. contact me if you want. i may be able to help off the forum if your story checks out.