They install a virtual assistant, and when broke students call in for POF letters, a virtual assistant signs on mentor’s behalf, saying that, technically, funds exist which could be used to buy the property.

This is where the BP virtual community comes alive so its great that you're putting yourself out there.When comparing househack options in multiple markets, I'd recommend using @Jon Schwartz's househack calculator. 

Seems to me that the best value often comes from hiring a virtual assistant.My wife and I currently own and manage 26 units, including 7 Airbnbs, and we also run a Keller Williams team.

I’m thinking about going the virtual wholesaling route.

I ended up owning about 250 of these.. and having to sell them off taking loss's virtually everyone of them it was a blood bath for us HML in 08 to 2010.. and not anything I want to ever repeat.. those that started lending HM post 2011 have had the rising tide great market situation but even with the good market people fail all the time for various reasons. 

The reality is this is virtually impossible for someone with no background or experience in Note space no capital and lives off shore.

I virtually always look at the property physically before making an offer. 

One of the virtual brokerages may be a good fit.

Ive found that offers with quick expatriations are either incredibly strong, or incredibly weak, with virtually none in between. 

FB and virtual RE groups are a great resource for networking with other local real estate professionals.