How do I turn off the activation lock for a deceased owner?
I inherited an IPAD and do not have any of the relevant information from the previous owner, who is deceased. How can I turn off the activation lock?
iPad Air WiFi Cell TD-LTE
Tap the link below.
How to request access to a deceased family member's Apple account - Apple Support
If this iPad is very old, it may not be worth jumping through all of these procedures to resurrect an old and, possibly, obsolete iOS device.
Best of Luck to You!