So, let's assume your name is on a lease for an apartment. The credit inquiry is going to show up on your credit report. Further assume you want to refinance your mortgage at today's low rates. Although it's a joint application, you'll be handling all the paperwork and phone calls, which will enable you to spin the credit inquiry, should it come up, in any of several plausible ways.
Question: If your spouse's only participation in the refi process is signing documents at closing, how likely is it that that one inquiry will come up at closing?
Asking for a friend.
And, yes, the friend knows he did something stupid and broke a rule, but there's nothing he can do about that now, so there's no point in berating him. Constructive responses would be appreciated.