The answer is "yes." And, it's the entire internet.
Contract language is not subject to copyright protection, generally, because as you point out, it's all the same. Put another way, there is nothing creative about the form language in most contracts.
As long as you are modifying the languge to suit your particular purpose, you are not violating anyone else's copyright.
Conversely, if you simply use someone else's contract form verbatim, then that would be a clear violation of the U.S Copyright Act.
That said, here is an excellect link to contracts of all types.
Hope this helpls.
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