@Michael Goddard Moving forward add to your posts where you live and/or where you intend to invest.

Most people assume that house hacking means living in a 2 bedroom 1 bath duplex.

I have lived in Hawaii for many years but now that I’m a traveling healthcare provider, I am off island more often than not.When I’m not on contract I would love to have a place to return to and when I’m away I would love to rent it out for some additional income.

One potential route is using a FHA 203k loan for the purchase and rehab if you're okay with living in one of the units for a period of time.

For example it is my understanding that Big Bear allows it but whoever is managing the property has to live within 1 hour of the property. 

I'm originally from the area and have been starting to look at some properties there as I am living in New Jersey.

My wife and I live in Easley & invest in this area.

I live in western washington. 

You should have, or you should create an amortization table that shows the actual interest paid on the $650k mortgage for the first 6 months while you lived there.

I live in the Bronx, NY but my goal is to own an investment property in Philadelphia by the end of this year.