No they don't require capitalization.
If it were the name of a course, such as Commercial Law 101, then you would capitalize the words 'commercia law'. However, if you are just speaking about commercial law in general in an essay, then you would not capitalize it.
No
no. you only need to capitalize it if it is a person or specific place.other than that spelling words should not be capitalized
In most quotations you should capitalize the first word and the other words necessary; as in any other regular sentence. There is no need to capitalize most words just because they are in quotations.
No it doesn't need to be capitalized.
No. The words sophomore, freshman, etc. do not need to be capitalized.
In-law
In the salutation "Good day to you," you only need to capitalize the first word, "Good."
Yes; when speaking of a specific law by its short title, you could capitalize it as it appears in the law.
No it shouldn't be capitalized.
no.
I would capitalize all of them. Catch Me If You Can.