I purchased a house in 2001 on a large lot. I was the only owner. I split the lot into 2 taxable lots. I lived in the house until 2006 and then sold the house for a small gain. I kept the lot and it had a large shop on the lot but no utilities.(power, water or gas.) I didn't depreciate the building. I used the shop for my rental properties and personal use. I sold the lot in 2016 however I was under contract with a developer but decided to cancel for a $5000 fee and sold the property to the homeowner that I had sold the house to originally. My questions are, Where can I report the sale? can I write off the $5000 cancellation fee? Are there any other pitfalls to lookout for?