Wholesaling Large Investment properties using Master Fee Agreement

[Martin Sterling]

I have several large investment properties that I'm trying to wholesale for an Asset Manager in NY. These properties are between $3M and $20M, Off Market, Private Deals. There is no way the seller is gonna let me put it under contract. Transactional Funding letters only go up to 500K in addition. 

I have found potential cash buyers for these properties as well.

I was told that I should have the seller put me in the master fee agreement for my fee. 

Questions:

1 - How does this work?

2 - Is this a secure and safe way to do business? I was told that I can be listed under finders fee.

3 - Am I able to demand 3 points or more or should I be happy with whatever I get even if it's $5000 on a $40M deal?

4 - What's the difference between a Master Fee Agreement and a Sub Fee Agreement?

Thanks in Advance