Other sites that can be successful included Facebook (specific groups you are targeting like traveling nurses or 5th ward housing, etc), Airbnb/VRBO (30+ day stays) and insurance placements like ALE Solutions.

I also often see local businesses selling their business and locations on facebook fairly often, atleast in my area.

I would look into your local Facebook pages for investors as well. 

For example, if she can't visit the property, is she good at record keeping (so everything is organized at tax time) or finding vendors, comparing product prices, finding free or low cost items on Facebook marketplace to improve the rental)3. emergency fund.

there's people out there who will fund downpayments for equity in the deal or a preferred return. hit up local meetups and facebook groups and have some conversations

I’ve tried joining the Facebook groups but I can’t without BiggerPockets profile link.

You can also check their reviews online at Google, Facebook, or Yelp.

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A dedicated Facebook page would also be a big contributor. 

IYes, facebook is full of fraud.