No, that would be the unauthorized practice of law. It is the duty and obligation of the personal representative (executor or administrator) to know what must be done, when it must be done, and how it must be done. If you have no knowledge of the legal administrative process for estates and/or the fiduciary laws of Pennsylvania, you should seek the help of legal counsel.
The Register of Wills and staff are not licensed to give legal advice. Professionals could actually save time and money in the long run due to their knowledge and experience.