You know I've seen this on Michael Blank's analyzer, and I've wondered at what size does this make sense, or when would one consider doing this.

Here is a good list to start with, we also have a YouTube channel with great resources to check out.Books for Multifamily-The Perfect Investment by Paul Moore-The ABC's of Real Estate Investing by Ken McElroy-Best Ever Apartment Syndication Book by Joe Fairless (This is a very specific niche so this would only be if you're interested in Multifamily Syndication)-Both Rod Khleif and Michael Blank have free E-books you can download (google it)Podcasts-Rod Khleif-Michael Blank-Old Capital Podcast-Joe Fairless - Best Real Estate Investing Advice Ever-Real Estate New for Investors - Kathy Fettke -Passive Income through Multifamily Real Estate

I've also found Michael Blank's podcast and have been listening to those in my down time.

Can't really answer this without seeing a blank copy of your assignment contract.

Anyone can take pretty pictures and put them on the internet; and many people can negotiate on price; but there are a lot more blanks in the Purchase & Sale Agreement than just price.C) A real estate agent usually earns their money between contract and closing. 

I just finished reading Financial Freedom with Real Estate Investing The Blueprint to Quitting Your Job with Real Estate–Even without Experience or Cash By @Michael Blank My current short term goal is to finish reading Crushing It in Apartments and Commercial Real Estate: How a Small Investor Can Make It Big by @Brian H Murray by July 14, 2019.

I think your lawyer stared you wrong. 

. $60k I offered, and I could feel their stare as this teenager in a "Death" band hoody joined into their war.

If you have time and would be available to fill in the blanks, I would appreciate it.Assume:$10 million sale70% loan by some lenderI don't understand how the other 30% works.

Show him the contract , a blank one with all the terms and conditions .