Hello, and welcome to JustAnswer.com!My name is Jesse, and I'm here to help.
You can sync as many iPads as you want to a single computer. It's best to use different accounts on the computer, but if you can't, you can simply sync them to the computer, and then on the iPad, change the AppleID login. If you go into the App store on an iPad, at the bottom of the screen is a Sign Out option. Simply click that and then they can log back in with their ID.