When will you need help? Will you need a third-party pair of eyes?
Even if you intend to oversee and carry out every aspect of the project you have in mind, it’s often advisable to have someone fully briefed on the project who can advise, work in tandem with you, or help out should events prove that you do not have time to do everything yourself. With an unofficial partner, you always have the safety net of an extra pair of hands when or if needed.
And of course, when you choose a hotel consultant or a restaurant consultant, you have the freedom to make the decision when to go it alone or to keep them on, but in the background, as a safety net.