Yes, President is a title just like professor. Its acceptable to not capitalize these words when they are not describing someone. EX: the history professor is really difficult. But when it is not a noun, and is however, a pronoun you should capitalize it. With the exception of President and Doctor. These should for the most part always capitalized.
If you are addressing someone as the president then yes you do capitalize it.
You should capitalize "American" when referring to the nationality or citizenship of someone from the United States, as in "American citizen." However, you do not capitalize it when referring to general concepts or things relating to America, such as "the American culture."
Yes, "Father-in-law" should be capitalized when referring to someone's parent by marriage.
Yes, "Project Engineer" should be capitalized as it is a formal job title. Remember to capitalize each word when referring to someone's job title.
Only capitalize "Democrat" when it refers to a specific political party or organization. In a general sentence referring to someone who supports democratic ideals, "democrat" should not be capitalized.
If you are addressing someone as the president then yes you do capitalize it.
You should capitalize "American" when referring to the nationality or citizenship of someone from the United States, as in "American citizen." However, you do not capitalize it when referring to general concepts or things relating to America, such as "the American culture."
Yes, "Father-in-law" should be capitalized when referring to someone's parent by marriage.
Yes, "Project Engineer" should be capitalized as it is a formal job title. Remember to capitalize each word when referring to someone's job title.
It depends on whether or not you respect the deity or not. For instance, Christians will capitalize He, Him, Who, and Whom when referring to God, but non-Christians generally do not, particularly when emphasizing that they do not share a faith with Christians. The capitalization of deity pronouns is purely a matter of reverence, rather than grammatical rules or norms. In short, if you want to avoid offending someone by disrespecting their deity, it is probably better to capitalize Who.
Only capitalize "Democrat" when it refers to a specific political party or organization. In a general sentence referring to someone who supports democratic ideals, "democrat" should not be capitalized.
Yes, "Attorney at Law" should be capitalized when referring to someone's professional title. It is a specific and formal title that should be capitalized.
That depends on whether you're using the words as regular or proper nouns. If you're referring to supreme court justices in general, without reference to a specific person or court, then there is no need to capitalize. If you're referring to a specific court, such as the Supreme Court of the United States, or the US Supreme Court, as it's known colloquially, you need to capitalize. The same rules apply to justices. If you're referring to US Supreme Court justices in general, apply capitalization only to the part of the sentence that includes proper (specifically identifying) nouns. If you're referring to a particular justice, as in, "President Obama nominated Supreme Court Justice Sonia Sotomayor in 2009," "justice" needs to be capitalized because you are using it as that particular person's title.
You would capitalize that word however you use it.
No, you do not capitalize marine biologist in a sentence. (Unless marine is in the beginning of the sentence)
No
If it is at the start of a sentence then yes, if it is not referring to someone's tittle then no.The word "leader" is a noun so it doesn't need to be capitalized. It only needs to be capitalized if it is at the beginning of the sentence.