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The proper salutation when writing to a judge is "Dear Judge [Last Name]" or "Your Honor."
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The Honorable...
The proper salutation for a doctor is doctor or professor depending on their title. In writing the short form can be used which will be Dr. or Prof.
When writing to a Minister of the Canadian Government, the proper salutation is "The Honourable [Full Name], Member of Parliament." If you know the specific title of the Minister, you can include that as well, for example, "The Honourable [Full Name], Minister of [Department]." In the body of the letter, you may refer to them as "Minister" or "Your Honour."
The Honorable Ruben Diaz
Dear Commander: Type your answer here...
The honorific would be The Honorable Councilman/woman John /Jane Doe, and the salutation is Dear Councilman/woman Doe.
Dear Mr. Mayor or sometimes, such as New York, Your Honor.
Dear Sir Michael (or whatever his first name is)
The proper salutation for a probate judge is "The Honorable [Judge's Full Name]."
What is the proper salutation for a register of wills, e.g. Honorable John White?