Low Balling
Enticing a client to sign a contract that is intensionally presented as a bargain, and then extracting more and more money later for fees, permits, and extra work. When a business person does this thier job proposal outbids his or her competators who also submitted bids. The business person knows in advance there will be significan exta costs by the time the job is done.
Constructive Taking
Cunning
Forthright
Failure to Disclose