addressing attorney and wife
Hello.
The Honorable (similar to a judge)
Dr. and Mr. Smith.
Rabbi and Mrs.
Dr. and Mr. Smith
Mr and Mrs would be proper. Attorneys are typical written to as Mister.
Dear Mrs Ambassador..
vmrs
"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.
Depends on whether you wish to be kind, or offensive, right?