Pettifogger (noun)
pet-ee-fog-er
A lawyer of inferior status who conducts unimportant cases, esp one who is unscrupulous or resorts to trickery / Someone who pettifogs
C16: from petty + fogger, of uncertain origin, perhaps from Fugger, name of a family (C15–16) of German financiers
Example sentences
“He was known as a pettifogger and it wasn’t any good for business.”