Tax memo for accounting

You have accepted a position as a staff accountant in the tax department at PWC, Los Angeles. Your first client assignment is on the tax service team for Creative Artists Agency LP (CAALP), a management agency representing some of the biggest musicians in the industry. CAALP’s lead internal accountant just emailed your manager with some questions about their qualified business deductions, who then forwarded the email to you (see below). Although you are nervous about the prospect of your first research question at your new job, you remember all that you learned in your tax class at SDSU, and you are ready to tackle this! You recall learning how to format a clear tax memo for your client file, and how to find and reference primary tax resources to support your answer.
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Good morning Tax Staff,
I got an email from CAALP this morning. They have some questions about their qualified business deductions related to their 2021 meals and entertainment (M