Dan's right. HMDA does not recognize "conditional" approvals. You say "there is an approval with outstanding credit conditions. . ." If they are property conditions, for HMDA that's not an Approval or an Approved Not Accepted.
If there are title issues - you deny it for that reason. If the applicant(s) was fully approved (met ALL Underwriting or Creditworthiness Conditions), then it would be ANA for HMDA.
If the borrower is non responsive, for Reg B you can either deny it because you haven't heard from them or send a Notice of Incompleteness. For HMDA, again, it depends on whether the applicant(s) have been fully approved. If so, you would call it ANA. If not, you would deny it or called it closed for incompleteness (depending on how you handled it for Reg B).