If he’s selling you something, then there’s a very good chance his “pitch” is not truthful.  

The other thing I'm wondering is if this is something that we should let them stew on or if we should respond promptly. 

My personal experience, I majored in economics with a focus in business analytics but what’s worked for me and I think is a good path is to major in something that will maximize your W2 earning potential and use the money to invest in real estate.

I'm 20 years old and have about $105,000 outside of retirement that I'd love to do something with.

In terms of doing a house hack, you likely will want to do a 5% down loan or something similar.

Something like $3K/month. 

But you also get the additional benefit of the fund manager handling everything that you would otherwise have to do, and freeing up your time is worth something.

Looks like Streamline is something to consider further down the road, but RevMax is available standalone...

I am new to this as well, but your numbers sound amazing if that is something that could actually be done.

You've got something you were once interested in under contract and now you'd have to start over, so if there's any way to salvage it/make it make sense that's what I'd be trying to do.