An entrepreneur (on-tra-pen-new-er).
a door to door sale person
a salesman
A solicitor? Possibly? Aren't they called a salesperson?
Hawking is one word for selling door to door
Salesman sells things in a shop or from door to door.
The person who makes the furniture is called a wood smith, as for the person who sells the furniture, I don't think there is a specific word for it.
door to door salesmen, of course
Probably a sales man
Roofing scam is a door-to-door business that sells damaged roof.
Yes the word stockbroker is a noun. It is a person who buys and sells shares.
People who sell goods or services from door to door are known as canvassers.
There's several possible answers to that, but I think "broker" might be the best word.