Hello.
addressing attorney and wife
Dr. and Mr. Smith.
Rabbi and Mrs.
Dr. and Mr. Smith
Dear Mrs Ambassador..
vmrs
miss
"Dr and Mrs Smith" is the correct salutation. (With Smith replaced with the correct surname)
probabaly just a mrs. would suffise
Dear Judge Smith and Mr. Smith.
The proper salutation for a man who is a doctor is Dr. David Jones or you can say Mr. David Jones, M.D. either way is ok. If the Doctor is married: Dr. David Jones & Mrs. Jones.