See WikiAnswers in Estates and Wills:
If you are referring to a specific document with that title, then the answer is yes. However, if you are just writing about the general idea, then no.
Good form dictates that the term should be capitalized as Last Will and Testament when you are referring to a specific document. The word will is so commonly used in its other sense that it should be capitalized when it is used alone to refer to a Last Will and Testament, i.e., Will.
No
The word Holy and Bible are are capitalized because when capitalization rules were set in place it was stated that the names of sacred books would be capitalized. This includes New Testament, Old Testament and Gospels among others.
It should be capitalized if it is used as a title. Example: Will and Testament of Washington
All proper nouns should be capitalized but all words are capitalized at the beginning of the sentence.
"Who" and "was" are not capitalized unless they are the first words of a sentence.
No it shouldn't be capitalized.
No, smaller words are generally not capitalized in a title.
Typically, all verbs are capitalized in titles. In fact, all words within a title are capitalized with the exception of articles (a, an, the) and short prepositions (of, in, on, etc).
no they are slang words. typically slang words souldn't be capitalized
Typically, all words will be capitalized except for articles (a, an, the) and short prepositions (of, on, etc.)
the words that are capitalized when used
A proper noun has its first letter capitalized.
Be is capitalized in the title, It Might Be You.