Flat Fee. Where a legal matter is simple and well-defined, lawyers typically charge a flat fee. Examples of flat fee matters include wills, uncontested divorces and simple bankruptcy filings. If an attorney suggests or has advertised a flat fee, be sure you understand exactly what that fee will and will not cover.
The definition of wily is  something or someone who is cunning and sly. An example of wily is a bank robber whose picture never gets caught on a surveillance camera.
[Middle English wil, from Old North French, from Old Norse vÄl, trick, or of Low German origin. These nouns denote means for achieving an end by indirection or deviousness. Wile suggests deceiving and entrapping a victim by playing on his or her weak points: Eve yielded to the wiles of the arch tempter (James Joyce).