It's tempting to write your own will instead of hiring a lawyer using online do-it-yourself sites and available software—and in many cases you can. A recent Money magazine article describes some situations in which a do-it-yourself works well. For example, if you have children, a will—any will—is necessary. If both you and your spouse die unexpectedly, state law will decide who raises your children, not you, so you must have a will that names their guardians. And, if you have less than $2 million in assets with a clearcut inheritance line, you'll most likely leave everything to your spouse and children. An online site such as BuildaWill.com or a software program like Quicken's WillMaker Plus can create a basic will suitable for these situations. If, however, you are a physician who owns a private practice, there is always the possibility of someone challenging your will—or placing conditions on when your children or family can inherit the money. It is important to consult a lawyer when there is a business involved. Money estimates the cost of consulting a lawyer is between $500 and $1000, with extra charges if you also need a trust.