You can "back-out" the duplicate income by making an offsetting entry in Line 21, Other Income of Form 1040. This will keep the 1099-MISC intact for purposes of the IRS matching it to your return.
To enter the "expense":
- Go
to Less Common Income, Miscellaneous Income and Other reportable income
(or enter "other reportable income" in the Search Box and Select
"Jump to other reportable income")
- Continue
to the screen "Other Taxable Income". Enter the description
as "Cost of Lawsuit Income" and the amount as a negative
number. These are NOT wages.
A corresponding negative amount will be entered, and
line 21 will be zero. See the attached screenshot example (different
descriptions, but still offsetting).