This is correct. Also a good overall note here is that the Constitution only applies between the government and the people. Private entities (businesses, for ex

This is correct. Also a good overall note here is that the Constitution only applies between the government and the people. Private entities (businesses, for example) are not beholden to respect your rights. A point to bring up with regards to landlords is that both State law and contract law (your lease) enable them to enter the dwelling under very special circumstances, usually such as an immediate threat to life. They may also enter to do various tasks such as inspections but laws usually mandate notice that must be given and how. Here in Texas, it's a minimum of 24 hours written notice for the latter.