"Will TT Business support final 1040 and 1041?"
No, TurboTax Business does not support the preparation and filing of any personal income tax returns (e.g., Form 1040); the program only supports the preparation and filing of income tax returns for entities (e.g, Form 1041).
You can purchase TurboTax Business directly from Intuit or from a reseller, such as Amazon (link below).
https://www.amazon.com/TurboTax-Business-2018-Software-Download/dp/B07HGST5ZQ/ref=sr_1_1?ie=UTF8&qid...
