Hey Chris,If she was to buy it then he'd get even more money, although I guess maybe her cost would be far lower to finance with low down payment.

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Is interest so low that you can't justify having them more often?

HUD loans will take drastically longer (I've never used one personally), but there can be benefits to using these loans if you're a long-term owner.The interest rates in your Key Considerations seem very low for agency loans and they're definitely low for bridge loans. 

I have found that the profit margins are very low in this model if the house is in a C/D neighborhood because you are limited to the amount of rent you can charge for each room.

I certainly know that future years the expenses won't remain that low, but wouldn't that be a reality on a property that has a lot of recent improvements?  

I've also assumed VA loans where little cash was used (seller had low/no equity).

Multifamily properties (2-4 units) can be a great way to build your portfolio while minimizing risk—especially with FHA or conventional low-down-payment options.Also, networking is huge.

The "+/-" isn't based on the high or low end of the sq ft range, it's based on the differences in quality, or finishes, or the specific location within that micro-market. 

We don't want a mass exodus in a non peak season for renting.