If Mercury is in the 4th house, the native will have very active mind-set, he will be patient, will have broad eyes and happiness from parents. He will be learned and happy. He will acquire wealth in early age by questionable means and acquire many kind of conveyances.
If the lord of the 4th house is strong he will have many Vehicles. If Mercury is associated with Rahu, Ketu or Saturn the native will be deprived of the comforts of conveyances. He will have no land, will have bitterness with his relations and will be deceitful.
If Mercury is 12th lord (for Cancer lagna) placed in 4th H (Libra), the native lose property lands i.e of loss of ancestral home.
Home is a place of communications. When you are home, the TV and computer are going while, at the same time, you’re on the phone and reading. The older you get, the more you are likely to talk and/or write. Mother either talked a lot or moved around a lot.
Other Views
Brihat Jatak- The person concerned will be learned.
Phaldeepika- The native will be learned, a flatterer, wealthy, will own lands and have good friends. He will also be happy.
Saravali- The native will be wealthy, will have good relations, will own conveyances and good clothes. He will also be learned.
Chamatkar Chintamani- The native will be wise. He will have enjoyments with his friends. He will be Chief Accountant of the Government Secretariat. He will be deprived of ancestral property.