The missing second witness —Attacking the Business Records of A Servicer: Start with the fact that the company is self-proclaimed servicer with no proof of authority and then pivot to the absence of records establishing the debt as an asset.
Excellent article written by attorneys at Blank Rome on the issue of Business Record exceptions to the hearsay rule. The hearsay rule is simple. It excludes from evidence any statement that is uttered out of court — whether that statement is in writing or was made orally. see https://www.jdsupra.com/legalnews/florida-supreme-court-resolves-conflict-20649/ So here is what it looks like …