So this is not a subsidized homebuyer program, it is a type of loan that is available in some states for physicians or physicians in training. I have not seen a contract for this type of loan before but from the way it is advertised it appears the loans can be used for real estate investing as well.
So I should have asked this question in my original post: So I know that you can buy a multifamily and legally live in one unit and rent out the others; is it different if the property is split under two different loans and the owner of the one property lives in the one side that is not on the loan he/she has in his/her name?
I knew this was a nuance in my plan and it is awesome that several people picked up on that. Perhaps it is a grey area... @Bill S. I agree that moving to the other property might be the most "by the book" way to handle this but I'm not sure the bank would care as long as the mortgage is being paid. Kind of like the "Subject to" deals with "due on sale clauses" that they talk about on the podcasts.
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About the ARM, so some back of the napkin calculations.
If purchase price is $330,000, current fixed rate mortgage is around 4.1%. The monthly cost basis for this would be around $2100 including interest, principle, taxes, insurance, garbage and water. This would leave me with a maximum cash flow of $300 and I may not get $2400 in rents.
The same scenario with a ARM on a 30 year loan with a 2.8% interest rate (fixed for 5 years) would give me a cost basis around $1600 and a potential cash-flow of $800. So after 5 years I would have a potential cash flow of $48,000 minus repair costs, vacancy, etc. instead of a maximum of $18,000.
This is thinking in terms of 5 years, rather than for the long, long term but as an optimist (like @Mark Ferguson) I always think things will be better in 5 years!
I do agree that this would be risky and probably not particularly smart under normal circumstance.
I guess the elephant in the room is that my (job) income will go from ~$55,000 to >$200,000 when I complete training in 2017 or 2018 and this is virtually guaranteed unless the US healthcare system completely unravels.
I am a bit more risk tolerant with that in the back of my mind. My wife also has a good job so we have a fair amount of disposable income. If things go awry we have cash to plug the hole.
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Final note: I really look forward to working with experienced BP investors when I have real money to invest circa 2018.