Can you assist in explaining my case study and how to a) Apply relevant legal p

Can you assist in explaining my case study and how to
a) Apply relevant legal principles and analysis from different perspectives to resolve problem with relation to below task?
Background information
Robyn and John have been best of friends since high school. Robyn is currently employed as physical education teacher and John is a nutritionist. After working many years as employees, they have decided to join forces and set up a Fitness Centre. They come to your office and seek your advice in setting up their new business venture.
Robyn would like to know and understand what his obligations and liabilities are as co-owner and director should he and Jill elect to set up a company.
Task
You have been asked by your managing partner to draft letter of advice for Robyn and John which addresses their concerns. In particular the letter of advice should address the following:
Assume that a company structure is the most appropriate business entity to operate the Fitness Centre and provide advice on:
can Robyn and John be employees of the company?
Apply relevant legal principles and analysis from different perspectives to resolve problem(include key issues and structure