There are many advantages to hiring a music producer, including:
They can help you create a professional sounding product: A good music producer will have access to high quality equipment and software that can help you create a polished and professional sounding recording.
They can save you time and money: A music producer can often times save you both time and money by helping you plan out your recording project in advance, which can help avoid costly mistakes or re-dos.
They can provide creative input: A good music producer will be able to offer creative suggestions and ideas that can help take your music to the next level.