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| 2004-07-14 09:05:46 | Chicago Hilltoppers | Alan Hayes | Add/Drop | Don Jordan | |
| 2004-07-11 00:05:10 | Chicago Hilltoppers | Clem Lay | Add/Drop | Brady Dunaway | |
| 2004-07-05 10:25:38 | San Juan Devils | Lance Stern | Add/Drop | | |
| 2004-07-04 10:16:04 | Edmonton SilverShoes | LeRoy Worthington | Add/Drop | | |
| 2004-07-02 02:37:36 | New York Warriors | Sean Wright | Add/Drop | | |
| 2004-06-27 23:48:18 | Buffalo Bombers | | Drop | Chase Morrow | |
| 2004-06-27 15:17:18 | Dallas Hounds | | Drop | Peter Wernimont | |
| 2004-06-25 20:23:58 | Little Rock Fighting Farmers | | Drop | Mel Wilder | |
| 2004-06-24 12:17:26 | Las Vegas Dark Knights | | Drop | Dayton Colvin | |
| 2004-06-23 15:04:20 | San Francisco Golden Gators | | Drop | Quin Kerr | |
| 2004-06-23 07:35:48 | Knoxville Wampus Cats | | Drop | Thad McAtee | |
| 2004-06-22 21:14:00 | New York Warriors | Anthony Gerstle | Acquired via trade | Deshawn Hatfield | Las Vegas Dark Knights |
| 2004-06-22 21:14:00 | New York Warriors | 2nd round pick in season 08 | Acquired via trade | Eric Sweeney | Las Vegas Dark Knights |
| 2004-06-22 21:12:00 | Philadelphia Assassins | Oliver Veal | Acquired via trade | Michael Cash | Milwaukee Sundancers |
| 2004-06-22 21:12:00 | Philadelphia Assassins | 2nd round pick in season 09 | Acquired via trade | | Milwaukee Sundancers |
| 2004-06-22 21:10:00 | Boston Bannerman | Lennox Lamaster | Acquired via trade | Devin Mears | Las Vegas Dark Knights |
| 2004-06-22 21:10:00 | Boston Bannerman | Devin Cornwell | Acquired via trade | Dwayne Unger | Las Vegas Dark Knights |
| 2004-06-22 21:08:00 | Milwaukee Sundancers | Nathaniel Keane | Acquired via trade | Morty Tackett | Philadelphia Assassins |
| 2004-06-22 21:08:00 | Milwaukee Sundancers | 2nd round pick in season 09 | Acquired via trade | 1st round pick in season 08 | Philadelphia Assassins |
| 2004-06-22 21:08:00 | Milwaukee Sundancers | 3rd round pick in season 09 | Acquired via trade | | Philadelphia Assassins |
| 2004-06-22 21:06:00 | Memphis Express | 1st round pick in season 08 | Acquired via trade | Demetrius Keane | Chicago Hilltoppers |
| 2004-06-22 21:06:00 | Memphis Express | 1st round pick in season 09 | Acquired via trade | | Chicago Hilltoppers |
| 2004-06-22 21:04:00 | New York Warriors | Alton Good | Acquired via trade | Al Lipscomb | Philadelphia Assassins |
| 2004-06-22 21:04:00 | New York Warriors | Eric Sweeney | Acquired via trade | Teddy Graves | Philadelphia Assassins |
| 2004-06-22 21:04:00 | New York Warriors | 1st round pick in season 08 | Acquired via trade | | Philadelphia Assassins |