And they are changing established landlord-tenant relationships, including which party makes decisions and who controls parts of a property.

This landlord-tenant relationship lasted until the middle of the 20th century.

"Criticizing is very awkward because of the landlord-tenant relationship," one said.

Ms. Ross attributed these issues to the usual bumpiness of landlord-tenant relationship.

"It's like he's playing out some weird personal dominance fantasy in the course of a landlord-tenant relationship," he said.

Sometimes, a poor landlord-tenant relationship can prevent a business owner from obtaining permission to hold an on-site sale.

The landlord-tenant relationship is defined by existence of a leasehold estate.

"The Mayor and I have been friends," he said, "in a landlord-tenant relationship."

By the 1950s, it virtually eliminated the landlord-tenant relationship.

"It is clear that we are not talking about a landlord-tenant relationship."