It is not unprofessional to give free legal advice, but advertising that the first visit will be free is a bit like a fox telling chickens he will not bite them until they cross the threshold of the hen house.
Eventually, the Sun will swell to occupy the entire sky as its expansion subsumes the orbit of earth. Earth's surface temperature will rise until it matches the 3,000-degree rarified outer layers of the expanded Sun. . . . But not to worry. We will surely go extinct for some other reason long before this scenario unfolds.