Damages. You must show that you suffered an economic loss as a result of the other party's breach of contract. Assuming the work must be redone or finished, this element should also be relatively straightforward to prove.

The legal elements for other types of lawsuits are different. You can find outlines for most in Represent Yourself in Court: How to Prepare & Try a Winning Case, by attorneys Paul Bergman and Sara Berman-Barrett (Nolo).

Is There an Alternative?

Even if you decide you have a good case, don't rush down to the courthouse to file a lawsuit. First, think about ways to settle your dispute out of court. You can talk directly with your opponent and try to negotiate a mutually beneficial compromise. Or you can hire a mediator -- a neutral third person who will help you and your opponent evaluate your goals and options in order to find a solution that works for everyone. Also, and especially if your contract provides for it, you may be able to submit your dispute to binding arbitration.

Can I Collect if I Win?

Your answer to the third question is incredibly important. There is no point in getting a court judgment against a deadbeat. While most reputable businesses and individuals will pay you what they owe, if they don't have it, they can't pay you. If your opponent tries to stiff you, you may be in for a struggle. Unfortunately, the court won't collect your money for you or even provide much help; it will be up to you to identify the assets you can grab.

Normally, if an individual is working or owns valuable property -- such as land or investments -- collection is not too difficult. You can instruct your local law enforcement agency (usually the sheriff, marshal or constable) to garnish that person's wages or attach his or her non-exempt property.

For a successful business, especially one that receives cash directly from customers, you can authorize your local sheriff or marshal to collect your judgment right out of the cash register. And in many states, if you are suing a contractor or other businessperson with a state license, you can apply to have the license suspended until the judgment is paid.