Get your taxes done using TurboTax

You would only benefit from combing your rentals if your taxable income is over $170,050, so when you are asked that question in the QBI section of TurboTax, you need to answer "Yes" and later you will be asked if you want to combine your businesses. 

You can read more about combing your businesses for QBI purposes here:  Aggregating business for QBI purposes