Don’t acquire a company before you’ve asked these questions (2018). See https://hbr.org/2018/05/dont-acquire-a-company-before-youve-asked-these-questions
Deal or no deal? Nine questions to ask when doing an M&A deal (2018). See https://www.golegal.co.za/mergers-acquisitions-transaction/
See this useful summary of what is required in a due diligence:
CHAPTER-9-DBSA-2020-Due-Diligence-Investigations.pdf (cliffedekkerhofmeyr.com)
See the dti Regulations under COVID-19 on excessive pricing