Does Tubotax have a form 2120 I can submit with my taxes?

Yes, TurboTax supports Form 2120, the Multiple Support Declaration. This form is used when multiple people contribute to the support of a dependent, but no single person provides more than half of the support. Here's how you can enter Form 2120 in TurboTax:

TurboTax Online:

• Log in to your TurboTax account.

1. For TurboTax Online, go to the Personal profile screen.
2. For TurboTax Desktop, open or continue your return and select Personal Info.
   1. Select Add another dependent/Edit
   2. Go through the dependent questions
   3. When prompted about support, indicate that multiple people contributed to the support.
   4. TurboTax will guide you through entering the necessary information for Form 2120.

For more detailed instructions, you can refer to TurboTax's support articles here. Additionally, the IRS provides information about Form 2120 here.