Q: We're going to be selling our building, which will involve brokers and interested buyers looking at our apartments. Several tenants think we should give them many days' notice and consult them when scheduling visits. Do our tenants have the legal right to make these demands? A: Putting up with rental applicants evaluating a home's potential or dealing with buyers eyeing the property during a sale are hassles every tenant encounters eventually. But most states give tenants some protections -- more than half have laws that specify how much notice a landlord must give before entering a tenant's apartment. Common periods are two days or 24 hours. Some state laws are less useful, requiring "reasonable notice," whatever that means. Notice requirements don't apply to common...