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.
The definition of guileless is candid,  without deception or naive. An example of someone who is guileless is an honest and innocent girl who just arrived in a big city and who believes that everyone is as honest and good as she. YourDictionary definition and usage example.