I'm so, so tempted to make a witty answer. But the correct salutation is their first and last name with MBA following their name (ie. John Smith, MBA).
What is the proper salutation for a register of wills, e.g. Honorable John White?
There is no general or standard salutation for an individual with a masters degree, like you would have with a doctorate degree. In other words, Dr. John Smith.
the correct salutation for two men is Messrs
Hello.
Your Honor
Dean actually is the proper salutation. One could say: Dean Redmond, would you please sign this form? Alternatively you could just use the Dr. salutation or the Professor salutation if those are appropriate, which they generally are.
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.
A proper salutation for greeting the president of a business is "Dear Mr. President". To conclude a letter, the proper word is "Sincerely" and a the name of the writer.
miss
Miz.
His/Her Excellency
Good Afternoon/morning _______,