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HOBO JUSTICE!!! TMZ has learned, the homeless man who was assaulted on tape by "Real Housewives of Miami" dumbass Peter Rosello has informed police he wants to press charges ... and now, cops are on the hunt for the reality star.

Law enforcement sources tell TMZ, the homeless man in the video was contacted by police shortly after the footage surfaced this week -- and he asked to press assault charges against Rosello, son of housewife Alexia Echevarria.

TMZ posted video of the cruel "prank" early today -- showing Rosello punching the guy in the balls while he was sleeping, then running off.

Now, law enforcement sources tell TMZ, a detective has been assigned to the case and cops are actively looking to speak to Rosello ... and possibly even arrest him on a felony assault charge.

Rosello faces a felony charge because of new laws in Florida stemming from similar "pranks." The new laws classify attacks on homeless people as hate crimes, meaning they carry stricter penalties.

If convicted, Rosello could face at least a year behind bars.