I apologize for swapping the form number as well; I should have known better (those two middle numbers are really easy to transpose for some reason).
Regardless, Form 8594 is indeed included in TurboTax Business but it is not supported in Step-by-Step mode in the program; it must be completed in its entirety in Forms Mode (there are actually quite a few forms to which that situation is applicable).
Specifically, with respect to your questions, "........do the numbers from Form 8594 flow into Balance Sheet? Or, should I enter goodwill impairment manually?"
No, the numbers from Form 8594 do not flow into the balance sheet in the 1065 module of TurboTax Business.
Yes, you would enter the goodwill adjustment manually.
