This form assumes that the specific details of the services to be performed are defined in a schedule – this structure is often used in cases where, for example, there is a list of different services to be provided. However, in many cases, the benefits are defined in the agreement. A lawyer can help you decide how to structure the definition based on the details of your specific situation. A professional services agreement is required if a company wishes to benefit from the services of a highly qualified contractor. This Agreement is preferable to a subcontracting relationship where the relationship is limited or limited. Read 3 min Professional services are all the services provided that are unique, very technical or rarely needed.