If you use iCloud and the Find iPhone feature, you can log into the iCloud web site from any web browser, select iCloud Settings (below your name) and then scroll down to My Devices, and remove that iPad as a device.I rarely use an iPad but have had one laying around that could be good to have around. Trying to reset it, but my Apple ID and password have both been changed since I last used this iPad 37 weeks ago. Is there any hope? Everything I read says no. I never go on the Apple support forum, because all I ever get is nasty comments from lurkers about every question I have asked for at least 10 years. Is it possible?
Then you're free to put the iPad into Recovery mode, restore it with iTunes, and set it up again. Recovery mode is entered by turning it off, then holding down Home and Sleep buttons until you see the "Connect to iTunes" image. If you then connect it to iTunes, it will tell you that you have an iPad in recovery mode, and you're on your way.