Inherited iPad 2. Help removing Activation Lock?

The executor or administrator of your aunt's estate may want to read this:

How to request access to a deceased family member’s Apple Account - Apple Support

"While we may also be able to help remove Activation Lock from devices that use your loved one’s original Apple Account, their iPhone, iPod, and iPad will need to be restored to factory settings before they can be used with another Apple Account. Please note that devices locked with a passcode are protected by passcode encryption, and Apple can’t help remove the passcode lock without erasing the device."

Few, if any, current apps are going to be able to run on the iPad 2 – a 32-bit device that cannot update past iOS 9.*. So I doubt if anyone will give you much money for it. I can see why it might have non-monetary value to you – as a way to help remember your aunt.

Typically in this situation you would apply to Apple for access to a deceased person's account, as posted in an earlier reply.

The other way is should you find the original receipt of purchase of the device from Apple, you could apply to Apple directly to have them reset the device. https://al-support.apple.com/#/additional-support You do not have to be the original purchaser (I have a computer from Apple bought in-store by me and the receipt does not have my name on it).

As was mentioned previously, an iPad 2 these days has no value. It is so old it is almost unusable. Apart from the stock apps, you will only find a small% of apps available for it. Even the stock apps may have problems interfacing with the web and Apple's services.