Yes; essentially you'd just be creating an additional agreement that supersedes the first one.
license agreement
Only if the courts allows you to and that the law agreement isnt a false/fake agreement.
The End User Licensing Agreement specifies how copyright law applies to a program.
It's in their best interests (and the rightsholder's as well) to have a written agreement.
Yes, via a fairly simple written agreement.
Yes, the Berne Convention is an international copyright agreement. All signatory nations will recognise the copyright on works of authors from any other signatory nation.
When drafting a transfer of copyright agreement, it is important to consider the scope of the rights being transferred, the duration of the transfer, any limitations or conditions, the compensation involved, and ensuring that the agreement is clear and legally enforceable. It is also crucial to understand the implications of transferring copyright ownership and to seek legal advice if needed.
Disposition of copyright should have been agreed upon in the commissioning agreement.
To transfer copyright ownership from one party to another, a written agreement must be signed by both parties. This agreement should clearly state the details of the transfer, including the specific rights being transferred and any conditions or limitations. The agreement should also be recorded with the U.S. Copyright Office to make the transfer legally binding.
Transfer of copyright can be handled by a simple written agreement. Most legal form companies offer them cheaply, but explicit (and free) instructions are in the copyright law, linked below.
The Mechanical Copyright Protection Society entered into an agreement with the Performing Rights Society, and now is part of PRS for Music.
Disposition of copyright should have been agreed upon in the commissioning agreement.