As a landlord you can deduct the hard operating costs of your properties every ceiling or floor you repair, and each new plumbingfixture or electrical outlet your purchase.
It makes sense since both industries have such large footprints, requiring large amounts of materials and supplies, creating business for realtors, lenders, lumber, cement, and window producers, plumbing, electrical fixture and paint suppliers, furniture and fabric manufacturers, attorneys, TV and print advertising, to name but a few.