A professional will assist you with scope and estimates, but having a clear idea of what you want to accomplish will help communication.
Do you want professionals to do everything, or do you have the time and skill to do some of the work?
Many projects such as have a DIY component, such as painting or cleanup.
First and foremost, protect yourself and make sure the contractor and any sub-contractors are licensed, bonded and insured.
They have abhorrent communication skills, they showed up 5 days after they told me and were incredibly rude when I tried talk to him. They need a lesson in manners and Colorado law