Sentence examples for has so from inspiring English sources

The phrase "has so" is correct and can be used in written English
It is typically used to emphasize something that has already been mentioned or to confirm something that has been said. Example: "She has so much talent as a musician." This phrase emphasizes the large amount of talent the person possesses. Example: "You've been working hard all week, haven't you?" "Yes, I have so." This phrase confirms the previous statement and emphasizes that the person has indeed been working hard.