Can I have more than one business linked to an account/email that already has a company tied to it? If so, how?
You may use the same email address to open any new QBO/QBSE account. Once you log in, you will notice the list of your accounts to choose. Make sure to click the Buy button to get the discounted price for up to 6 months. If you purchase from the trial account, you have to pay the regular price.