When working positively, retrograde Mercury in the twelfth house of a horoscope in the sign of Leo can bless the native with good results related to marriage, profession, fame, authority and many other types of good results depending on the overall tone of his horoscope. Such benefic retrograde Mercury can bless some natives with favorable outcomes through the field of their marriage, when working in accordance with marriage promoting planets in their horoscopes. Benefic retrograde Mercury in the twelfth house in the sign of Leo can bless some natives with life partners who may belong to foreign countries and these natives may settle in the countries of their life partners after their marriages. For example, if benefic retrograde Mercury is placed in the twelfth house of a horoscope in the sign of Leo along with benefic Venus, benefic Jupiter is placed in the seventh house of this horoscope in the sign of Pisces along with benefic Rahu; and benefic Moon is placed in the second house of this horoscope in the sign of Libra, the native may receive this benefit. The native boosted by benefic retrograde Mercury in the twelfth house in the sign of Leo and other benefic planets may get married to a woman who may be the citizen of a foreign country and he may settle in the country of his wife on the basis of his marriage.
Benefic retrograde Mercury in the twelfth house in the sign of Leo can impart professional success to the natives through many fields of profession, when supported by profession favoring planets in the horoscopes of these natives. Such benefic retrograde Mercury can render posts of authority in the house of government to some natives and these natives may achieve such authority as air force officers, foreign services officers, army officers, revenue officers and many other types of professionals. For example, if benefic retrograde Mercury is placed in the twelfth house of a horoscope in the sign of Leo, benefic Sun is placed in the first house of this horoscope in the sign of Virgo, benefic retrograde Saturn is also placed in the first house of this horoscope in the sign of Virgo along with benefic Sun, benefic Rahu is placed in the third house of this horoscope in the sign of Scorpio and benefic Ketu is placed in the ninth house of this horoscope in the sign of Taurus, the native may join the air force. The native boosted by benefic retrograde Mercury in the twelfth house in the sign of Leo and other benefic planets may get blessed with a post of authority in the air force and he may witness success and recognition as an air force officer.
At the same time, if benefic Venus is placed in the twelfth house of this horoscope in the sign of Leo along with benefic retrograde Mercury, benefic Mars is placed in the first house of this horoscope in the sign of Virgo along with benefic Sun and retrograde Saturn; and benefic Jupiter is also placed in the first house of this horoscope along with these three benefic planets when all other planets are placed in the already mentioned houses of this horoscope, the results may improve a lot. The native boosted by benefic retrograde Mercury in the twelfth house in the sign of Leo and other benefic planets may achieve success in competitive exams conducted for selection in the air force and by virtue of such success, he may get selected for the highest possible direct rank in the air force. The joint impact of such benefic retrograde Mercury and other benefic planets can bless this native with a very good career as an air force officer, he may come across many prestigious missions during his career and he may enjoy many benefits by virtue of this job of authority. Apart from this, benefic retrograde Mercury in the twelfth house in the sign of Leo can bless the natives with success, fame and authority through many other fields of profession, if this retrograde planet is favored by profession boosting planets in the horoscopes of these natives.
On the other hand, malefic retrograde Mercury in the twelfth house of a horoscope in the sign of Leo 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 feel the heat of such malefic retrograde Mercury in the sphere of their health due to which they may have to face many types of problems related to this field. Malefic retrograde Mercury in the twelfth house in the sign of Leo can render many types of health problems to some natives and these problems may intensify with the addition of other negative planets to the horoscopes of these natives. In an extreme case of this type when supported by other malefic planets, malefic retrograde Mercury in the twelfth house of a horoscope in the sign of Leo can kill the native at a relatively young age by virtue of a life threatening disease, or the native may have to spend many years of his life in a mental asylum, as he may get afflicted with a serious psychological disorder.