Due Diligence is required in Pennsylvania effective September 10, 2016. Please see section 1301.10a from Pennsylvania's statute for specific details.The due diligence fee is paid directly to the seller. Due diligence is their right to investigate the physical location and the area around it. This is used to prevent potential buyers from ending contracts. The standard NC contract also has a separate amount for earnest money which is not forfeited until due diligence closes. The core elements of due diligence are: a. Due diligence in real estate is a period of time during the homebuying process, typically after an offer is accepted and before closing. Treasury has a team of compliance specialists that can: • Answer questions about reporting unclaimed property.