Time To Refinance - Best option needed

[Symone Gordon]

I currently own a duplex under an FHA loan (purchased Jan 2021) - I want to refinance as well as purchase another multi-family home. I'm wondering which is more beneficial: Refinancing using an FHA streamline loan for a lower interest rate or conventional to get rid of the PMI? I purchased at $250K with 3.75% rate and $10K DPA (If I refinance within 5 years DPA at time of refinance due in full). Property currently worth $295K.