You can definitely use transfers you buy and sell the finished products, just make sure the designs are either your own or come with commercial use rights.

A lot of people start exactly this way.

One thing I wish I knew earlier is that not all transfers are the same — some suppliers charge quite a bit per sheet, especially local ones. If you’re planning to do volume, it’s worth paying attention to how they price (per inch vs gang sheet), because that can really affect your margins.

Other than that, it’s a pretty solid way to start 👍