Will Margin warn us about a covenant?

Yes. When a loan's newest certificate has a covenant Close or Breached, Margin tells your company's admins and finance team in the app and by email: "Covenant close to its limit" or "Covenant breached", with the loan's name. Each covenant is told once for its month and status, and again if a Close one becomes Breached.

Finance home also has a Lender tools card for everyone who can see the books, while there's something on it: each covenant that is Close, Breached, not met or can't be worked out on a loan's newest certificate, how many certificates are waiting for approval, and each stock and debtors statement due within a week or overdue. Open lender tools takes you there.