An Opinion is all i can venture,
too all I know if you are goign for a second home, I think perhaps you should find one thats "perfect" to your situation, not using *your* credit, maybe do a lease option on an allready-ented-out place or a duplex, then only your cash-to-close etc comes from pocket, and you keep yoru credit "clean" as an "investor" should.
-only an opinion
Have a Great Day