If it is the first word in a sentence, or if it is used as a proper noun in the title of a specific entity called a foundation, it should always be capitalized. For example it is capitalized if you use the Bill and Melinda Gates Foundation in a sentence. Otherwise, used as the supportive structure of a building or as a layer of make-up it is not capitalized.
Yes you can do it but it depends upon where you are using it.
No, "heritage" should not be capitalized unless it is the first word in a sentence or part of a proper noun, such as "Heritage Foundation."
It is capitalized at the beginning of the sentence or when it forms part of the proper noun. Examples: Malaria Foundation International
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
It should only be capitalized if it forms part of a title.
Yes it should be capitalized.
The first 'c' should be capitalized.
Yes, it should be capitalized.
Yes it should always be capitalized.
As an abbreviation it should be capitalized.
Yes it should be capitalized.
No it should not be capitalized.