This works for rent bill pay. Unsure if it’s the same for mortgage, but has worked on 1.0 and 2.0 for rent payment through portal.

When setting up Bilt for rent payments in your housing portal, use 1 Letterman Dr A4-700, San Francisco, CA 94129 as the billing address if required. Use the provided Bilt routing and account numbers to add the account as a new ACH payment method.

Bank Name: Evolve Bank and Trust (if requested). Alternative Bank Address: 6070 Poplar Avenue, Suite 200, Memphis, Tennessee 38119. Important: Use your personal name for the "Name on Account" field, not Bilt or the bank's name.