FHA Foreclosure Prevention Act of 2019 This bill revises foreclosure-prevention measures for single-family homes insured by the Federal Housing Administration. Specifically, the bill requires documentation from mortgage servicers of loss mitigation efforts, provides the Department of Housing and Urban Development with oversight responsibilities over mortgage servicers, establishes a complaint procedure for borrowers regarding mortgage servicers, and requires a mortgage servicer to provide notice to borrowers regarding the loss mitigation process.