Based upon the below four situations, explain your position of why or why not the following circumstances would have violated the professions ethical...

Based upon the below four situations, explain your position of why or why not the following circumstances would have violated the professions ethical standards when you are a practicing CPA.

1.   Expressed an unmodified opinion on the current year's financial statements when fees for the prior year's audit were unpaid

2.   Recommended a controller's position description with candidate specifications to an audit client

3.   Purchased a CPA firm's practice of monthly write-ups for a percentage of fees to be received over a 3-year period

4.   Made arrangements with a financial institution to collect notes issued by a client in payment of fees due for the current year's audit