EHL or EHO logo?

Is it more appropriate to use Equal Housing Lender in ads when it ad is in reference to home loans, as opposed to Equal Housing Opportunity which is more appropriate for renting/leasing of homes?

It depends on your regulator. Who is your regulator?

Federal Reserve

Federal Reserve-regulated banks use "Equal Housing Lender." See page 11567 of the FR here: https://www.govinfo.gov/content/pkg/FR-1989-03-21/pdf/FR-1989-03-21.pdf