2004 Honda Civic Could an oil pan gasket problem just be sp

Engine Mechanical problem
2004 Honda Civic Automatic 44000 miles

I am considering buying a 2004 Honda Civic from an individual. I had a pre-purchase inspection done by the local dealership and they said that oil leakage was likely due to the oil pan gaskets. The person selling the car had the oil changed 2 days ago, and thinks that it could just be oil that spilled from that oil change. Likely? any suggestions on how to quickly diagnose?

thank you!