You didn't make clear if you actually lived in MI before your move to PR. If you did, your income during that time is taxable by Michigan, and you would have to file a Michigan part-year resident return.
You are correct that your income after your move to PR is taxable by PR, and not by MI. Unfortunately TurboTax does not support Puerto Rico tax returns. See this FAQ for more info: https://ttlc.intuit.com/questions/4409290-can-i-file-for-state-tax-for-pr-with-turbotax-because-it-n...
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
