Q. I was asked by an unmarried neighbor friend who was hospitalized to go to his home and light his menorah, since he can't do so with candles in the hospital. I accepted to do it, but I'm not sure if I have to say a brocho, one or both?
A. Kovetz Halochos (p.111) mentions that a shaliach or representative agent, that lights Chanukah candles for someone else, should only recite the first brocho of 'Lehadlik Ner.'
Horav Shlomo Miller's Shlit'a opinion is that since he is a neighbor, he should first light in his home as usual and have in mind when he recites the brocho that he is going to light next at his neighbor's house, then do so immediately, without reciting any additional brochos.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a