"She wants to know if there is something she can do with the K1 gains."

You explain how she pays taxes because she benefits from the activity.

"I wish there was someone to mentor me."

You can research "Safe Harbor." A client like this likely should be using Safe Harbor for estimates.

And make sure to learn, and then explain, the difference between "owing taxes" and "owing a balance" because everything here shows you are not clearly defining the conditions and that will matter for your client.