John Lutz: Buyer Beware (USA 1992)

From the Publisher:
The job seemed simple enough; just take the child from Florida back to her father. But when the kidnapping proved to be a cover for a clever scheme of fraud it became apparent that somebody was going to be murdered.

John Lutz: Buyer Beware. Carroll & Graf, ISBN: 0881848409 (April, 1992), $3.95.