My last lease was an Infiniti Q50 for my wife. If the inspector could cover it with a credit card, there was no excessive damage. She had a good sized curb rash on one wheel (about 7" long). He said it would be a $50 excess damage fee.
If you buy or lease another, they waive darn near anything. Infiniti even offered to pay the last couple months of the lease payments if we bought another. We started shopping early. We did purchase a QX50.
Get your inspection done as early as you can so you know what you're looking at long before it's time to turn it in!