A "legal eagle" is a slang term for a lawyer with great skill and determination.
Legal Eagles started a Mega-Invasion on July 4, 2014. The Mega-Invasion was considered a nuisance by some players, as they occurred in most of the districts and made it difficult for Toons to complete ToonTasks that did not involve defeating Lawbots or Legal Eagles specifically.
Legal Eagles are the only tier 7 Cog on the corporate ladder without an attack that deals a maximum of 24 damage, and also the only tier 7 Cog to have more than one attack that deals more than 20 damage (which are Pecking Order and Legalese).
Legal Eagles and Loan Sharks are the only Cogs based on animals. Coincidentally, both of these Cogs are tier seven in their respective corporate ladders and have two signature attacks.
Legal Eagles break the fourth wall by mentioning Toontown Rewritten when they use the Legalese attack.
Legal Eagles are one of the few Cogs to not have a shared head mesh and/or textures.