I'm sure all of you have been studying for The Definitive Middle-Earth Test. Here's a sample question to get you started:

16. Though Moria is, by rightful ownership, Dain's, Balin nonetheless referred to himself as "Lord of Moria". Helm's Deep is clearly the property of the Rohirrim, being part of lands granted to them by Gondor long years ago, yet in Return of the King p. 360 hardback Gimli declares himself "Lord of the Glittering Caves". Explain the laws and history pertaining to Dwarven property rights, and how those differed from the customs of Elves and Men. For full credit your answer must also reconcile Dwarven property laws with the generous nature of Aule, the Dwarves' creator.