First of all, 'CPA' is not a word.
If you're referring to 'Certified Public Accountant', then yes, you would capitalize 'CPA'.
do you capitalize the word protestant
It is not necessary to capitalize the word "yo".
No, you do not capitalize the word drama.
Acronyms are always capitalized to distinguish them from ordinary words in the sentence, this is most important when the acronym is a word (IE WHO- World Health Organization as opposed to 'who'). You do not capitalize the individual words when spelling out the phrase UNLESS it is a proper noun. World Health Organization is capitalized, certified public accountant is not, United Nations is, unidentified flying object is not.
Yes, you must capitalize the first word, UNLESS it is a small word, such as "It" or "A" or "The".
Unless "it's" is the first word, there is no need to capitalize.
No, you do not capitalize the second word in the complimentary closing.
Yes, you should capitalize the word after a comma in a sentence.
In a title, you generally do not capitalize the word "for" unless it is the first word or part of a proper noun.
Capitalize the word "to" in a title if it is the first or last word, a proper noun, or a verb.
Yes, you typically do not capitalize the word "to" in titles unless it is the first or last word.
Capitalize the word architect only when it is part of a title.Example:Senior Architect, Joe Smith