[3] As she visited various theatrical managers in New York City, she regularly encountered rejection despite her official letter (written in English) from the NCT.

In one office she was told, "Oh, Mr. Belasco is flooded with crazy communications from freaks and fakirs and cranks ..."[4] After being well-coached in English and the conventions of American show business, she had a long career on the Broadway stage and in theatrical touring companies, from 1909 through 1927; thereafter she was seen in character roles in motion pictures.

[citation needed] Boros' Broadway acting credits included Chicago (1926), The Kreutzer Sonata (1924), Rachel (1913), and The Wife Decides (1911).

In order to pay her bills, she mortgaged her house, sold most of her possessions, got rid of her servants, and began receiving $10 per week in relief payments.

[6] Although her screen roles were mostly in the supporting category, she performed and contributed to the plot in popular films such as Once Upon a Honeymoon and A Tree Grows in Brooklyn.