Mercury gets exalted when it is placed in the sign of Virgo, which means that Mercury gains great strength when placed in the sign of Virgo. Hence retrograde Mercury in the twelfth house of a horoscope can give strong positive or negative results when placed in its sign of exaltation, depending on its working nature and the overall tone of the horoscope under consideration.
Benefic retrograde exalted Mercury in the twelfth house of a horoscope in the sign of Virgo can bless the native with good results related to marriage, profession, authority, fame and many other types of good results depending on the overall tone of his horoscope. Some natives may witness good results through their marriages, when such benefic retrograde exalted Mercury is supported by marriage building planets in their horoscopes. Benefic retrograde exalted Mercury in the twelfth house in the sign of Virgo can bless some natives with life partners who may be rich and these natives may enjoy many pleasures by virtue of such marriages. For example, if benefic retrograde exalted Mercury is placed in the twelfth house of a horoscope in the sign of Virgo, benefic Venus is placed in the first house of this horoscope in the sign of Libra along with benefic debilitated Sun; and benefic Mars is also placed in the first house of this horoscope along with these two benefic planets, the native may experience such marriage. The native boosted by benefic retrograde exalted Mercury in the twelfth house in the sign of Virgo and other benefic planets may get married to a woman who may belong to a very rich and influential family; and the fortune of this native may rise high after such marriage. It should be noted that the presence of benefic debilitated Sun along with benefic Venus in the first house of this horoscope in the sign of Libra may form Neechbhang Rajyoga in this horoscope, which may bless the native with very good professional success with the support of the family of his wife.
When working in tune with profession promoting planets in the horoscopes of the natives influenced by it, benefic retrograde exalted Mercury in the twelfth house in the sign of Virgo can bless these natives with success, authority and fame through many fields of profession. Benefic retrograde exalted Mercury in the twelfth house in the sign of Virgo can render special interests and abilities to some natives under its impact due to which these natives may engage in professions like astrology, numerology, tantra and other such fields; and they may achieve success through them. For example, if benefic retrograde exalted Mercury is placed in the twelfth house of a horoscope in the sign of Virgo, benefic Venus is placed in the second house of this horoscope in the sign of Scorpio, benefic Mars is placed in the sixth house of this horoscope in the sign of Pisces, benefic Jupiter is placed in the ninth house of this horoscope in the sign of Gemini and benefic Saturn is placed in the eighth house of this horoscope in the sign of Taurus, the native may become an astrologer. The native boosted by benefic retrograde exalted Mercury in the twelfth house in the sign of Virgo and other benefic planets may come across significant knowledge of astrology by virtue of dedicating a long period of time in the study of various aspects related to this science. The native under the joint impact of such benefic retrograde exalted Mercury and other benefic planets may start practicing as a professional astrologer, and he may earn good amount of money and success through the field of astrology.
At the same time, if benefic Moon is placed in the fifth house of this horoscope in the sign of Aquarius and benefic Sun is placed in the twelfth house of this horoscope in the sign of Virgo along with benefic retrograde exalted Mercury when all other planets are placed in the already mentioned houses of this horoscope, the results may become much better. The native boosted by benefic retrograde exalted Mercury in the twelfth house in the sign of Virgo and other benefic planets may become a very successful astrologer and he may witness very good amount of money, success, fame and recognition through the field of astrology. Apart from this, benefic retrograde exalted Mercury in the twelfth house in the sign of Virgo can bless the natives with success, fame and authority through many other fields of profession, if working in the company of profession approving planets in the horoscopes of these natives.
On the other hand, malefic retrograde exalted Mercury in the twelfth house of a horoscope in the sign of Virgo can trouble the native with problems related to marriage, profession, health and many other types of problems depending on the overall tone of his horoscope. Some natives may face the heat of such malefic retrograde exalted Mercury in the field of their marriage due to which they may have to face many types of issues related to this field. Malefic retrograde exalted Mercury in the twelfth house in the sign of Virgo can delay the marriages of some natives due to which they may have to wait till late or very late in order to get married. In an extreme case of this type when present in the company of other malefic planets, malefic retrograde exalted Mercury in the twelfth house of a horoscope in the sign of Virgo can delay the marriage of the native till his age of 48, or he may not get married throughout his life.