Hello! Welcome to the Apple community! I understand that you are looking for a legitimate seller of Apple account removal tools. It's great that you want to resolve this issue without jailbreaking your device. Unfortunately, I can't provide specific recommendations for sellers, but I can guide you on how to remove the Apple account from your iPad.
1. Contact the previous owner: If you bought the iPad second-hand, try contacting the previous owner and ask them to remove their Apple account from the device. They can do this by going to Settings > General > Reset > Erase All Content and Settings. This will unlink their account from the iPad.
2. Apple Support: If you are unable to contact the previous owner or they are unable to assist you, I recommend reaching out to Apple Support directly. They have the necessary tools and knowledge to help you with account-related issues. Visit Apple's official website and navigate to the Support section to find the appropriate contact options for your region.
3. Proof of purchase: If you have proof of purchase, such as a receipt or invoice, it may be helpful to provide this information to Apple Support. It can demonstrate that you are the rightful owner of the device and may assist in the account removal process.
Remember, it's important to deal with authorized sources and follow the proper procedures to avoid any potential scams or îllégâl activities. Good luck with resolving the issue with your Apple account!