Are you saying that under the new tax law, mortgage interest moves from being a Schedule A deduction to a deduction to gross income in determining adjusted gross income? I didn’t know that and assumed it was going remain in Schedule A.
I am not qualified to give tax advice and do not know the answer to your question. I only know that in the past, I was able to deduct my mortgage interest from my taxable income. Renters do not get this luxury. I also pay property taxes. Renters do not.
I do not know what deduction went to or from what schedule. Sorry.