When representing landlords, if possible I steer them to professional real property management companies staffed by licensed real estate agents and brokers. Besides the general assurance one can recieve by working with licensed professionals, they have access to the market resources such as the Arizona Association of Realtor Forms 

However, while a good realtor can help you put the pieces together, a good attorney can help you see the whole picture, including important review of new real property transactions which may help you identify and avoid potential pitfalls. 

An ounce of prevential is worth a pound of cure. Each line of a professionally prepared, reviewed and approved agreement is to receive the benefit of the blood, sweat, tears and legal battles of those who went before. Rely upon qualified professionals and avoid the expensive "tuition" required by the school of hard knocks.