I have to agree that there seems that there won't be too much time for the Yorkie.
Both my husband and I work full time. I leave the house at 8am and don't return until 6 or 7 pm. I have 2 Yorkies, so they keep each other company during the day.
However,
every and I mean every other minute of every day and every night I spend with Roxy and TJ. They are my life. I walk them, feed them, we play for hours and then we all sleep together. On the weekends, I don't leave the house for very long, or we bring them with us to places that are doggie friendly. Gosh, I even belong to a Yorkie Meetup - we meet once a month and have a play date. I treat Roxy and TJ as they were my children - whom I love and adore - well pretty much whom I slave over hahahaha - But honestly, I wouldn't have it any other way. My life is committed to Roxy and TJ, and then my hubby and me!
Best of Luck!
They do require alot of attention, so be prepared to use your spare time on and with the Yorkie