Can I Unlock My iPhone carrier Before Contract Ends with any requirements?

Ask your carrier. Only the carrier the phone is locked to can unlock it.

Apple can not unlock your carrier locked phone.

Only you and your carrier know the exact term and conditions of the agreement. I suspect you’ll have to buy out the contract. Contact the carrier’s support team for the details.

In the US:

• https://www.fcc.gov/general/cell-phone-unlocking
• How to unlock your iPhone for use with a different carrier - Apple Support