When mercury placed in fourth house of horoscope, the person is fat, lazi, mage, generous and lover of brothers. The person is a donor and must have the luxurious vehicles. Mercury in forth house can make a person a high level writer also, but not necessary to earn from writing. The person is moralist and scholar. If mercury is lord of fifth house and sitting in fourth house, the person may have high education as the forth house is twelfth from fifth house so it will spend education and spending education means more education. If mercury is also seen by Venus or Jupiter, the person will have luxurious vehicle. As the both planets are the factor of luxury and wealth. But if mercury in fourth house seen by Saturn or Rahu or sitting with, there may be an accident through vehicles, as the person do harsh driving.
The person live alone and keep thinking to harm others if mercury placed in forth house in Aries, Leo or Sagittarius sign. He treats even his mother as enemy. He disparate the people even if they bless him. And he is also extremely stingy and never bless for others.
If mercury placed in fourth house in female signs like Taurus, Cancer, Virgo, Scorpio, Capricorn and Pisces, it never gives profits in business. The person always gets loses in business. The person quarrels with everyone.
If there is effect of Saturn on Mercury the person will have educational problems and will not complete the studies. In the influence of Gemini, Libra and Aquarius the person is very proud and enemy of Father. But all these results will very depend on other planets situations. There may be some changes according to other planetary positions.
Astrologer Sunil Kumar