Just me brainstorming here, but...You could potentially build a rent collection platform on top of something like Stripe and owners can hire you to process their rents.

Zillow's collection platform is separate from the rental/purchase platform. 

Responsible to maintain the highest occupancy at the highest rental rate the market can sustain and minimize expenses without sacrificing the quality of goods and services provided.Handle all tenant relations using our online property management platform.

Our property manager lists all of our rentals on Zillow and from the data I see, it is the platform that generates the most tenant bookings for a property tour.I believe it is free, unless you want to pay $30/month for their premium version.Please do not hesitate to reach out, connect, and DM me if you want to discuss more.

I do a lot of group investing through a platform called Tribevest.  

Might be a great platform for you to learn how to invest with a VA loan.

I think as many others said, leavings reviews on as many platforms they have as well recommending them to family and friends will seriously go a long way. 

It is always exciting when new folks come in the platform!

I hope you continue to learn from everyone on this platform.

Do you have any recommendations on free or best platforms to use when collecting online rent payments?