If you're in the trades working for wages on a contractor's payroll, as Lawrence Dworin was 15 years ago, perhaps you're thinking it would be nice to have work where you keep all the profit, control the project, have steady employment, are your own boss, and reap tax advantages. Sound appealing? If so, you might want to consider spec rehab work. It's been providing a decent income for Mr. Dworin for 15 years, and, he says, it could for you too, if you follow his advice. After reading his book, Profits in Buying & Renovating Homes, I'm inclined to agree. To be sure, you won't learn everything you need to know from this single book, but you'll get