Do we tip the butler and what is a fair gratutity?
1Paris1 is 100% correct. The butlers and the spa team members are allowed to accept tips but you are not obligated to by any means. Should you feel the service was worthy of a little extra "thanks" - you can do so at your discretion in any amount you feel is appropriate.
You are allowed to tip the butler. We had a set of butlers at the beginning of our stay that we did not like. So we had it changed to two amazing butlers. We tipped them. I think $10-$20 a day is sufficient. In my opinion it depends on the quality of work. Tip them at the end of your stay. Have fun.
Get an answer from Sandals Ochi Beach Resort staff and past guests.