Please solve this case

Case 2" . Muhammad Hassan is a partner in a Big 4 accounting firm the partner he hired accounting students from your University to conduct the audit of paitel. When the audit was done he received the audit report and signed it. The report was issued one day later. > Your mother in law is a majority shareholder in Jawwal you are hired by the company to conduct an audit you conducted the audit issued your report > Ahmad CPA and All a CMA formed a Partnership to provide Audit services. The company was named the nice Audit CPA rm > Samir a CPA advertised has practice on web siting several prominent clients of his firm, he also included links to the client's websites and quotes from his happy clients > Hale a CPA was talking her husband about here work she mentioned some client's information to prove her point > Jenen a CPA in a local accounting Firm when one of her clients did not pay his bills she informed them that she will not give them their records and supporting documents until they pay > Alas a CPA to supplements his income by worked as a bartender at the Movenpick hotel > Majed while auditing the Palestinian Leasing Company discovered a violation lFRS 16. The company indicated to him that this violation is not Material and that following lFRS 16 will make the financial statements misleading accordingly he issued a standard report > Majeda audited a company for three consecutive years without receiving any fees Required For each case indicate the violation of the code of ethics. Explain your answer by also indicating the standard violated. in case there is no violation indicate so with your reason for your