As a CPA in Arkansas, I am expected to give at least 55-60 hours per week with no overtime or comp time, month after month. After a year of this and the threat of being fired if I slowed down, do I need to look for a new job or is there recourse?

As an exempt employee, you are expected to work the hours required to do the job with no additional compensation or others perqs, such as compensatory time. CPAs often work these kinds of hours. You have no legal recourse.