I also have some capital to contribute.Could someone explain how syndications are typically structured, and how are people using Other People's Money (OPM) to build large portfolios with little to no money down?

You can build a deck around them as well - or not. 

Fine-tuning your savings, building a reserve fund, and running detailed ROI projections will help solidify your plan for long-term success.Good luck!

I do not believe I am RentRedi's target consumer as I have more needs than others and that has been true for other business relationships I tried to build in my time, but I hate when things have to end on sour notes and the fact that it took publicly criticizing the service to get attention is more than disappointing on RentRedi's part as a service business.

If you want to build a large number of properties, get connected with local meetups. 

I'm currently adding all of my numbers for a 20-unit apartment building in for a test, and then I'll bring my other 90+ units.

You are working a demanding corporate job but also want to build rentals on the side.

Building a Team: While I can handle most of the renovation work myself, I’d need an electrician and possibly a real estate agent.

Encourage him to build credit to 680/700+, get 20% down, and have 9-12 months reserves and then he can get a No Income loan from one two different lenders. 

Start with one close to home where you can learn and build a team.