No, unless you're referring to a specific person
The term 'probation order' does not need to be capitalized except on the order itself, it is the title of the document. If you are writing in reference to a probation order, just as in this sentence, it needs no capitalization because it's a common noun. If you use a reference line on a letter for example, Ref: Probation Order #123456, you capitalize because you are naming a specific order.
Yes, both words should be capitalized as "Orthopedic Rehab." This is because "Orthopedic" is a proper adjective describing the type of rehabilitation services provided.
Yes, "Military Services" should be capitalized when referring to the armed forces of a country or any organization related to military activities.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
No. It is not a proper nou n.
It should only be capitalized if it forms part of a title.
Yes, it should be capitalized.
Yes it should always be capitalized.
Yes it should be capitalized.
As an abbreviation it should be capitalized.
The first 'c' should be capitalized.