I agree with so much of this response, but wanted to supplement it. 

The NOC must be credit worthy and have enough income to cover his/her own liabilities with enough leftover to help supplement your debt to income ratio.4.

Our general manager helped her apply for supplemental rental assistance and she was awarded funds and all is good. 

get a better appriasal. use a rental aggreement to supplement as addtional information to the appraisor 

In your case you could supplement with your own funds to replace the debt portion and buy a $350K property for $350K in cash.Or you can go the opposite direction. 

The Airbnb coverage is supplemental, not all encompassing.

However, they all worked into their mid to late 60's accepting the fate of menial PT retirement jobs to stave off boredom & to supplement their retirement/pension incomes. 

@Rodger Little We use a vendor to provide a due diligence report but use it to supplement our own investigations.

@Alec Newman you can do a Orel whether home is primary or not, and when you go to buy another can use supplemental entitlement to by another home using VA there are some rules to it it.

You can read all the books and listen to all the podcasts and attend all the webinars you want (all good things as supplements for sure and 100 percent necessary), but you will remain stuck until you make in-person investor-to-investor relationships and find out who they use for what and how they do their business.