The concept of "A Man's Home is His Castle" is first found in Blackstone's "Commentaries on the Laws of England". The idea is no matter how humble a person's home may be, the King of England with all his forces combined cannot intrude without warrants. Soon thereafter, the Fourth Amendment forbade unreasonable search and seizure in the United States. The renter of a dwelling house has, thus, some expectation of security and privacy within the four walls of his home. To what extent can a landlord intrude on the tenants quiet enjoyment? And to what extent can a mortgagee (bank) interrupt the quiet enjoyment of ahomeowner?This is the bank/homeowner, it is not asking about a mortgagee and a tenant.