List of all current AIA Contract Documents. Listed below are commonly asked questions and answers about the general requirements for applying for a contractors license.Nevada independent contractors need a clear contract to protect their rights. In other words, contractors must deliver the services they agree to perform, but what they do (and how they do it) is solely up to them. Are any international forms of contract ever used? How is the form of construction contract to be used selected? All of these documents together make up the full construction contract. 8 things a subcontractor agreement should include. In those situations, they could enlist the help of a subcontractor to fill in any gaps and ensure they meet the job requirements. Specialized Skills: Independent contractors are often hired for their specialized skills, knowledge, or expertise in a particular field.