EXCLUSIVE

Jussie Smollett Faces Lawsuit Over 'Attack' ... Could Get Him Fired from 'Empire'

Jussie Smollett may have just been checkmated by the City of Chicago, and it could cost him his "Empire" job.

The City is now demanding he pay $130k for the overtime required to investigate the now-infamous "attack." A City official sent Jussie a demand letter, but his people have already rejected the request, saying the only person owed anything is Jussie -- as in, an apology from the Mayor and Police Superintendent.

This has now set up a courtroom showdown, and sources connected to the Mayor tell TMZ ... they will absolutely file a civil case to get the money. Under the law, the City can actually collect 3 times the actual amount owed as a penalty -- meaning around $390,000.

If Jussie fights it in court, his "attack" case will be fully litigated. A judge will have to decide if the attack was fake before deciding whether Jussie is required to pay. What's more, the judge would only have to rule that it's more likely than not -- 51/49 percent -- that Jussie faked the attack. That's a much lower standard of proof than a criminal case, which requires proof beyond a reasonable doubt for a conviction.

Now here's the hard part for Jussie. If a judge rules the attack was fake, it gives the honchos at "Empire" all the ammo they need to say he's fired, despite the fact the State's Attorney has dismissed the criminal case.

And, to add insult to injury, if Jussie loses the case but refuses to pay the judgment, the City can execute on the judgment, and that would include garnishing wages and freezing bank accounts -- including his "Empire" salary.

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