Stealing America. Jim Nash Adventures, #29

Jim Nash and Maddie Spence, partners in business and in life, are going through some tough times. Business has been slow. The pair is on the verge of losing Jim's private investigator business. The only thing they have going for them is the office building and the residences they operate. They own the building outright. When Nancy Boyle walks in and tells Jim she needs him for a job, he accepts. Even though she's light on details, that doesn't bother Jim.
He knows Nancy, and trusts her. When she tells him the job is for the feds, alarm bells begin to ring. In Jim's past, he worked jobs for the feds as an independent contractor. He ended up getting screwed every time. Nancy explains that the job is top secret. It will involve moving certain items out of the country for safekeeping, Jim is intrigued. With no further information forthcoming, he demands to be paid up front.
What he asks for is no small amount. When Nancy steps out of his office to make a phone call, Jim figures the job offer just flew out the window along with the money he wanted paid in advance. Much to his surprise, Nancy returns. She agrees to meet his demands. Now Jim must meet hers. To do so, he's forced to turn to Harry Delaney.