It seems as if she would have to reduce her W2 income but that seems counter productive! 

@Zach HochstetlerThe lender can't "force" into one loan product or the other.Just to clarify... 

etc..If you are looking to leverage debt and come in w/ little to no money down (VA), I'd recommend owner occupying / house hacking / whatever you want to call it and depending on if you're looking at an SFR or duplex an FHA or conventional loan product will most likely work best. 

What if too many other people offer airBnBs and prices decline??

The supply of homes for sale fell 29.5% year over year, the largest annual decline ever, to 1.03 million homes.”Indeed, according to CEPro, SFH construction weakened 10.3% in February due to labor and material shortages.

Their novelty product?

I am currently in Houston, TX but will be moving back to Allentown in November to continue working at Air Products in Trexlertown PA.

When would it be wiser to use a conventional home mortgage than a product like this?

Joel Owens here on BP is one I've always been impressed with his understanding of product type, cycles, returns etc.

@Brian PownallExcellent data, clearly shows cap rate decline and cap rate compression.This cap rate compression does not impact my investing strategy.My strategy is based more on investing where I have a competitive advantage than relative cap rates.