Private deal possible when listed?

[Cecilia Kim]

First time posting!

Looking at a pre-foreclosure in the LA area and the owner wants to sell directly but also has it listed. 
Can you put a property under contract privately or must you put it an offer with the realtor?

If he signs a contract with me while still listed, would any agreement with the realtor void my contract?

Thanks in advance for any insight!

[Wayne Brooks]

@Craig Jeppesen Not exactly....the listing agreement is for set %, say 4.5-6% which includes what the ludying broker Would pay to a buyer’s brokerage but it typically doesn’t get cut in half just because the buyer has no agent.