One of the quickest ways to throw yourself into financial turmoil, is to seal a deal with a handshake. I'm not implying that handshakes are bad, I'm just insisting that they need to be backed with a bona fide contract. Even when conducting business with friends, family, or trusted coworkers, a great deal of discomfort and confusion can be avoided by spelling out the rules of a deal and by putting your signatures to it. The bigger the deal is, the more critical a contract is. When dealing with large amounts of money, a professional lawyer should be consulted also.
I had a situation once, which involved having a coworker install new wood siding on my garage. I thought it would be a fairly simple arrangement. We agreed on a price, and a completion date. He was to be paid when the job was finished. The problem arose when I came home one day to see the new siding on my garage. What had happened was that the garage wasn't level, and rather than leveling the siding with the environment, my carpenter friend applied the siding in accordance with the structural lines of the garage. I'm not kidding when I say that the garage looked like a ship in the process of sinking.
Don't miss the rest of our series on 15 Ways to Ruin Your Financial Future!
Because we had simply agreed to a siding installation, my friend insisted that he had fulfilled his part of the bargain. I bit down hard on my pride and cut him a check, then I stripped the siding off of the garage and reinstalled it myself. In retrospect, a contract would have specified that the work would be done correctly and in a "workmanlike manner." I have not made any business agreements without signed, written terms, since that one hard earned lesson.