It is not necessary to set up your website right away, but it will be very helpful to get started with your business by setting up your website.
This will also be beneficial to your credibility once you start looking for lenders and buyers. You can direct them to your website showing your professional platform. It will also be helpful to create in the beginning because it can start funneling leads to your website minimizing the amount of work that you have to do allowing you to leverage your time.