I have a property which is being rented out. I re-negotiated and rented out the property again in 2017. I did not engage an agent. The running around, negotiating, preparing contracts, doing leg work and all took time. But since all these are done by me there are no receipts. Can I charge a certain sum of dollars as EXPENSE for the work that I have done (though no receipts)? Can I claim 1 month rental? Thank you.