What is the effect of 7 th lord in 12 th house?

When the ruler of the 7th house falls in the 12th house of the chart the native is likely to be very intuitive and sensitive. They may carry on many secret love affairs or tend to be very private about their relationships. There tends to be idealism when it comes to partners, and this person may indulge in self delusion when it comes to relationships. The native is likely to attract and seek out mystical, sensitive, artistic, sympathetic types for relationships. The only danger here is that the partner may be of an underhanded, shady character. It is best to make sure that all dealings with others and the people with whom the native associates are aboveboard, or there may be deception. The native may be the means of their own undoing by indulging in harmful delusions, manipulations and plays on their sympathy.