I asked the question again here: <a rel="nofollow" target="_blank" href="
https://ttlc.intuit.com/questions/4549579-mortgage-was-sold-to-new-lender-after-one-month-do-i-enter...>
I put the same original loan amount for both the original and new lender. For the original lender I included the points (started in 2018), the amount of interest paid, and a remaining balance of $0 for 1/1/19. For the new lender I put the interest paid and the actual remaining balance. My federal return was just accepted so it seems to have worked out.
