As I am a layman, not an attorney, nor in the legal profession, this will be a layman's answer, until improved by a professional. The fact that you asked about "ethical" duties, indicates that you are aware of the fact that an Executrix, or Executor [aka Administrator], has legal duties which take precidence. It is my opinion that the ethical duty of an Administrator [male or female] is to diligently work to accurately comply with all legal requirements and duties as prescribed by the laws of the state in which the deceased legally resided at the time of death. Once that is considered, then any other decisions [ethical] should, as carefully as possible, be based on the needs, wants, and desires of the legal beneficiaries of the will. Generally, that will fall into the area of the division of personal property which the deceased did not specifically leave to a specific individual in the will, but instead left to all to be divided equally. This can be a very thorny problem as there may be more than one beneficiary wanting the same item(s). This is where the ethical considerations of the Administrator really comes into play, and should be settled with as much consideration as is humanly [and humanely] possible, for all involved. The sad part is that prior to the administrator making a division of that personal propertery, one or more of the beneficiaries may have decended [like a herd of stampeding cattle] on the house, and grabbbed all they could, and making a fair distribution of that missing property can be near to, if not, impossible. If you are in this position, good luck!
That would be one of the key duties of the executrix. They have to inventory, value and liquidate the estate.
File a lawsuit against the executrix for mishandling their fiduciary duties. However, you will have to prove you were the rightful beneficiary. First, however, get a copy of the will from your local Probate Court and be sure of its' provisions.
Executrix
An executrix is a female executor, in the legal sense.
The nature of all duties is for the employee to know how to do the work & be ethical in the work place. Any unethical behavior will result in punishment.
Insurance Company
There are laws that set forth the duties and resposibilities of Executors of Wills. Check with your County Clerk of Court, I'm sure they will advise you of how to find out what you need to know.
The deontological theory is one that suggests people should stick to their duties. Whatever their ethical duties are, they should not deviate from them at all since that is what is ethical.
Apply to the probate court. If the primary has already accepted the duties, they will have to provide a full accounting to the court of what they did. The court will issue new papers for the new executor. If they haven't assumed the duty, they simply decline to serve.
Executrix...
A persons rights and duties depend on the morals an ethical code of the culture of which they are a part. These can vary.
Yes, you can say no to being the executrix. You decline the responsibility with the court. They will appoint someone else to do the job.