Can you really start a business in 90 minutes?

Some entrepreneurs might balk at the idea that setting up a business can be done in a jiffy, like a routine oil change.

John McAdam, a former CEO and serial entrepreneur, says an hour and a half is all you need to get started. The author of The One-Hour Business Plan and instructor at Wharton’s Small Business Development Center is hosting a workshop next week called “Start your business in 90 minutes,” where he hopes to get 50 businesses up and running.

“The decision on incorporation options can be broken down quickly,” said McAdam, “mostly driven by tax, legal liabilities, how many partners you expect to take on.”

Then begins the real work: getting the idea off the ground and racking up a client list that can support the company.

“Too many entrepreneurs focus on other stuff,” said McAdam. “To be successful you need revenue, scalability and customer funding.”

McAdam will be joined by a panel of experts like Thomas Bark, a corporate attorney with over 25 years of experience; Peter Cordua, senior director at HBK CPAs and Consultants; and Jennifer Sherlock, founder of Philly PR firm Jenna Communications.

The workshop is happening Jan. 18 at 1776’s Powelton Village spot. Along with the $147 sticker price, attendees will get access to phone and conference calls with advisers and discounted rates on professional services.

(Get more lessons on starting, running and sustaining a business here, by way of the Technical.ly Toolkit.)