I have a real estate business and wanted to get some advice on a current situation.Can my real estate business sponsor a team in an adult flag football league?  

. $ is split with their league members.

How did they get their network at that age if not through family or Ivy League connections?

Consider baseball - even someone that is out 7 times in 10 is a major league professional batting 0.300. 

And as a total newbie and only 20 years old, will I be completely out of my league? 

i am way out of my league here, but could the business get a loan from a commercial lender and own the property as some sort of holding and the owner just pay "rent" to the business as a 30 yr lease as someone else mentioned?

Honestly, unless you have a sizable team of seasoned pros or run a PE slave-shop where you can grind Ivy-league analysts for 100+ hours, you will be fighting a losing battle. 

Then he tells me about the major land development he is doing in Brazil so I now thank God I listen to BP podcast because it gave me the confidence not run from the table because I am sooooo out of my league.

For example, suppose one is applying to an Ivy League institution, but has a poor GPA and SAT scores.

Good point Account ClosedA bank needs to consider the big picture with profitable customers.If the release can be prudently justified considering credit history, ability to pay, profitability of the borrower, good management, secured position with sufficient collateral a bank may release a guarantor as the bank may well have loan concentration issues with any one borrower, that's usually getting beyond the small investor league.