expensive for the average person, not to mention a retiree, in the United. States. This is not the case in Costa Rica. A live-in maid or other full-time help. usually costs about $200 per month. Often you can hire a couple for a bargain. price, with the woman working as a maid and the man working as a full-time. gardener and watchman. Before hiring any employee, be aware of all your.