How to take off Ipad locked to owner

Presumably you are being prompted for your AppleID credentials - so as to satisfy the Activation Lock. You will require the AppleID an associated password that was last used to successfully activate the device - which, for the bona-fide owner, should be straightforward.

Here are the Apple support pages that outline the Activation Lock - and the only mechanisms by which it can be satisfied:

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

Turn off Activation Lock – Apple Support

As you will discover, unless you are the owner of the AppleID that was last used to activate the device, you’ll not be able to defeat or bypass the Activation Lock. With documentary evidence that you are the original owner (such as sales receipt showing the serial number), Apple may be prepared to assist - otherwise they and nobody here will be able to help you.

If you have the necessary documentation, Apple have recently introduced a new portal though which you may be able to request release of an Activation Lock:

How to remove Activation Lock - Apple Support & start an Activation Lock support request.

However, recovery of the AppleID credentials should be possible…

If you have forgotten your AppleID or associated password, these can be recovered here:

https://iforgot.apple.com/

To recover your credentials, you’ll need access to any one of the following:

• Your primary email address mailbox that corresponds with your AppleID
• Any of the secondary/recovery email addresses that should be configured for your AppleID account
• Any of the trusted telephone numbers (fixed line or Cellular/Mobile) that are associated with your AppleID

More information about recovery of your AppleID and associated Password:

If you forgot your Apple ID - Apple Support

If you forgot your Apple ID password - Apple Support

If you bought the iPad used, the previous owner should have done this to prepare it for a new owner:

What to do before you sell, give away, or trade in your iPhone or iPad - Apple Support

That's assuming that they parted with it voluntarily. Activation Lock is an anti-theft measure designed to make stolen and lost iPhones and iPads useless to thieves. We cannot help you remove it. Apple will not help you to remove it except in very limited circumstances (e.g., you are the original purchaser, and can prove that to their satisfaction).

How to remove Activation Lock - Apple Support

The All Too Common SAD Reality of Buying a Used iPad/iPhone

Did you buy this iPad used?

If so, you need to return it to the person who sold it to you. They must remove their Apple ID from the iPad in order for someone else to use it.

~Lyssa