In general, DSCR loans will require the property to be either leased or at least "Rent Ready". 

There are companies like midland used to that will act as custodian.  

For example in many jurisdictions I can STR units in a duplex but cannot STR an ADU (some jurisdictions will let you STR if you owner occupy).

Competition with owner-occupants and the age of the homes (70-120+) will squeeze your margins and expose you to a fair amount of risk.

Your realtor will be able to give you a much more detailed market specific answer but with house hacking and a VA loan it should be possible to get 0 out of pocket.

Even if you get a great deal that is 20% below market, appraisers will typically be anchored by the last sale price and you may be stuck not being able to pull out as much cash as you need to pay off the HELOC.

Even if you personally have just a modicum of design aesthetic sensibility, after reviewing 20 or 30 properties, you will quickly be able to get a sense of the winners.My 2 cents,Mike

Also for time being cancel the premium subscription as that will also probably get them to reach out to you

If you go to the Lease Agreement Forms for your state here: https://get.biggerpockets.com/forms/index/, at checkout, it will give you the option to Upgrade to “Become a Pro annual member for $213 more!

How will the ownership of the property be?