The term "kick-in" is typically hyphenated when used as a noun or an adjective, such as in "the kick-in amount" or "a kick-in incentive." However, when used as a verb, it is usually written without a hyphen, as in "to kick in." Always consider the context to determine the appropriate usage.
Can you, or should you? You can hyphenate it if you're moving between lines in a paragraph and need to break up the word. You shouldn't hyphenate it normally.
Yes it should be hyphenated.
not required
McCarthy should not be hyphenated.
A hyphen is not required.
Yes it should be hyphenated: co-worker.
Yes, hyphenate by-laws.
Yes it should be hyphenated.
According to the sources I've found on a quick search, you should hyphenate 'coauthor', i.e., it would better be: "co-author".
where does kickin' it get filmed
Kickin' was created in 1989.
Don't hyphenate; ongoing is one word.