State tax filing

Since you were in the same state at the beginning and end of the year, you should consider yourself a resident of State 1 and consider yourself a non-resident of state 2 & 3 since it appeared that both of those states were only temporary residences.

When you start working on your state returns, you'll want to work on your State 2 and State 3 non-resident returns first before working on your state 1 resident return.  If you started State 1 and have not yet finished State 2 and State 3, you should delete the State 1 return as follows:

If you are using the Online version of TurboTax:

1. Click Your State Returns under State Taxes on the left side menu.
2. Click the trash can icon by the Edit button for the State that needs deletion.
3. Click Delete on the pop-up asking if you want to delete this return.
4. Then you can click Add Another State to get restarted on that return.

If you are using the Desktop version of TurboTax:

1. Click File in the upper left corner then Remove State Return.
2. This will bring up a pop-up asking what state you want to remove.
3. Click on the state in the menu and then click Remove.
4. You can then go back to the State Taxes tab and pick out a state you want to work on.

Your State 1 return may give you credit for taxes that you paid to the other states, so that's why it is important to finish State 2 and 3 first to get their tax liability determined first.