My Biggest Legal Concern as a Teacher

As a special educator the legal concerns are far and wide. Because everything we do is so confidential and documented, by biggest concern is that I will be bound by the IEP to do what I can to help a child, and have a parent say that I did not do everything stated within that document. From there I would be held accountable for a breech of terms and could be taken to court. Progress monitoring is a big deal in Special Education because that is the documentation that proves what you have done according to the goals on each child's IEP. With a caseload of 16 maximum, IEP students, how is one to get it all done and say they did everything they could and make the parents happy? Maybe I should say that my biggest legal concern as a teacher is the happiness of the parent's of my students.