how to remove previous owner's apple id from device if apple id is disabled/locked

You can't, so contact them and have it unlocked by the person that locked it

It requires the Apple ID and password of the previous owner. If you don't have it and cannot get it, then the device is useless to you. Return it for a refund if you can.

Find My iPhone Activation Lock

In the future check first before buying second hand: How to check for Activation Lock before buying a used iPhone.

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Kappy can not grant rights to you, the post belongs to Apple.