At worst the invoice is for less than $2000 (3 days at top rate). No attorney can just make it go away for less than the cost of paying the invoice.
What should happen is that the attorney will say to pay it, and send their own invoice on top of it.
I'm not advocating the "get legal to push back on the invoice" strategy; I'm just saying, you don't have to rule it out to slowroll an invoice.
At worst the invoice is for less than $2000 (3 days at top rate). No attorney can just make it go away for less than the cost of paying the invoice.
What should happen is that the attorney will say to pay it, and send their own invoice on top of it.