I am employed at various businesses using Reckon Accounts Hosted, Payroll Premier, and Reckon Accounts Premier desktop. Will I be able to download the MFA app to my own Android phone and use it for all the businesses, or will I need a separate solution for each workplace?
Yes, with the Google Authenticator app you can add multiple accounts to serve your MFA. They will appear as separate entries in your list when you open the app (my screenshot below is linked to only one account).
You can add separate accounts by clicking the + symbol