I aim to utilize other people's money to invest wisely in buy-and-hold multifamily properties.

Totally a viable option but keep in mind the documentation of the process and making sure that YOUR material participation does not exceed anyone else in the home - for example, your cleaners or maintenance people. 

Mostly with people I know well. 

Does anyone know of a good community that's specifically meant for people who are more advanced in real estate? 

But, the value of properties has been going up steadily, and lots of people want to rent. 

Harrowgate is up and coming in my opinion, even though people still may call it Needle Park.

I'd love it if some of you much smarter people could look at my analysis and see if I'm missing anything?

While I was trying to be clear about not having any experience with you, I don't know if many people understand the fund of funds or co-sponsor structures and if/how they bring any value.  

Use the search feature to find: people; posts/blogs on specific topics; and answers to all of your questions.3.

When there is no realtor involved, it could be fine, but it could be disguising the fact that there would be fraud going on or that the purchase price doesn't equal market value (i.e. two related people selling a property one to another at an inflated value, etc.)