We have four Howea forsteriana plants in our office, which I must say have probably not had the best care. The leaves on one of them have turned a light green color (along with a few brown). The leaves on the other three are still a dark green with a few brown. Should I remove the brown leaves? If so, where should they be removed from?
Yes, you can remove the brown leaves but leave the green ones. The following article should be of some help to you: https://www.gardeningknowhow.com/houseplants/kentia-palm/howea-forsteriana-kentia-palm.htm