No, but they should be capitalised as Sheriff's Deputies.
I don't have any idea what you're talking about, but yes.
Not in ordinary usage, they are not proper nouns. Of course, if they begin a sentence or are part of a title, they should be capitalized. And some publishers still follow the convention of capitalizing pronouns that refer to the Deity.
I don't think I can go to the party, Frank.
One should always capitalize names in sentences.
In this sentence, the comma is used to set off the interrupter "Sally" from the rest of the sentence. It helps to clarify that the speaker is addressing someone named Sally without disrupting the flow of the sentence.
Deputy's: Must be left in the deputy's vehicle.
I don't have any idea what you're talking about, but yes.
Not in ordinary usage, they are not proper nouns. Of course, if they begin a sentence or are part of a title, they should be capitalized. And some publishers still follow the convention of capitalizing pronouns that refer to the Deity.
When addressing the court, the widow vowed that her husband's killer should spend the rest of his days in prison because of his grevious acts.
In order for a paragraph to be cogent, it must support the topic sentence. If one is addressing another idea, conclude the previous thought and begin another paragraph.
I don't think I can go to the party, Frank.
The title "Dr." should be used when addressing a medical professional.
Yes you do. You are directly addressing the person and should set their name off with a comma as in a full sentence (eg. "I hope you have a happy birthday, Amy.")
One should always capitalize names in sentences.
You should be free to do so or addressing inability if exists should have priority
In this sentence, the comma is used to set off the interrupter "Sally" from the rest of the sentence. It helps to clarify that the speaker is addressing someone named Sally without disrupting the flow of the sentence.
No