I am married but my 11 yr old daughter and I want out, is there any law that would prohibit us from just leaving?

There is no law that prevents you from leaving, but if you are taking your 11 year old daughter, you need to be careful that you don't get accused of anything.  As long as you have custody of your daughter, you can legally leave with her.   Will you leave (or have) a cell phone number so that her father can get in touch with her?  Do you intend to file for divorce?  child support?  Good luck - I know its a difficult decision but it sounds like you are ready.  If you need assistance, call my office.