A solicitor? Possibly?
Aren't they called a salesperson?
a door to door sale person
a salesman
An entrepreneur (on-tra-pen-new-er).
Salesman sells things in a shop or from door to door.
door to door salesmen, of course
Probably a sales man
Roofing scam is a door-to-door business that sells damaged roof.
People who sell goods or services from door to door are known as canvassers.
A hat salesman:)
Hawking is one word for selling door to door
A person who sells limestone,
The girl scouts, but they only sell cookies in the spring.