Liens to protect an investor on a flip?

[Rosanne Avila]

Good Morning, We are considering investing with a contract in the Seattle area who has been flipping for 5 years or so.  He mentioned the non disclosure contract for us to sign.  

Can someone please tell me if we need to place a lien on the property to make sure we are paid?  If we fund the rehab and another investor funds the purchase, we would not be in first position if the deal goes south. 

Any advice on protecting your investment through this process would be much appreciated.  Thank you!!