I need to petition the probate court in regards to my mother's estate, would be able to do this on my own or do I need an attorney?

It depends on the reason why you are petitioning the court.  If you want an accounting you might be able to ask for this on your own.  If you are challenging the will, or want to have the executor removed, you will most likely need an attorney to help you with this because there are certain legal standards that need to be met.  If you are in Monmouth or Ocean County call my office and I will discuss this matter with you.