Things to consider when looking to hire an Interior Designer
Budget: You may not know what it will cost, but you may have parameters for what you are or aren't willing to spend.
Feelings: It's important to know how you currently feel in/about the space, and most importantly what you want the feeling to be in the space.
Management: How much do you want to be involved in the process? Do you want to DIY? Time management, What's your timeline for the project?