Is it necessary for me to have a Content Creator Agreement with the company I am creating content for?

Depends on what the content creator agreement with the platform says about termination. It likely has the platform covered. If they didn't follow the terms of the agreement, you might have a claim. The claim may be limited in damages as most of these contracts, if well written, have limitations on damages under the contract.

The key elements for a Content Creator Agreement are: 1. Payment Terms/Late Fees: How much will you be paid? When will you be paid? In what manner will you be paid? Are there any services/deliverables that must be provided before you are paid? What are your remedies if the payments are late? 2. Deliverables: Clear project deliverables that list all of the important project details/requirements 3. Timelines and Review & Approval Process: What are the required timelines for completion of the work? How long does the client get to review before the work is considered approved and final? What happens if the client wants to make changes to the work? Do requested revisions change the price? 4. Ownership: Who owns the content - client or content creator? 5. Confidentiality: Information shared between the parties should be kept confidential. 6. Exclusivity: Will the agreement be exclusive or non-exclusive? 7. Term and Termination: When does the relationship start and when does it end? How can the parties terminate the relationship? What are the responsibilities of each party once the relationship is terminated? What happens if there is a breach of the contract?

It would be a good idea for you to have the agreement reviewed by an attorney. You said there's no explicit language regarding termination or notice - is there something implied? With no language regarding termination, most likely either party can terminate at any time, with just a moment's notice, and no reason given. You have asked a lot of questions - I suggest that you post a project here on Contracts Counsel, and ask for an attorney well versed in intellectual property (not me) to discuss your rights, as that is probably the most important issue. An attorney who can also review the language of the entire agreement would be very helpful. (I'm sorry, but I'm not available for this project).

Personal leave sometimes replaces vacation and sick time. Some employers just give employees time off for whatever reason the employee chooses. To know more about the rights and responsibilities, you should speak to HR at your new employer who will help you with the employer's expectations and your rights under the leave provision in your contract. Also, look at your contract as it may provide insight as to how to implement the leave. When in doubt, speak to HR. Thanks.

I suggest you post a job on Contracts Counsel for help with this.