Thanks everybody! I really appreciate your comments!
He is a registered Paint. 8 Years old, 16 hands tall. He is trained in Western, English, Showmanship and Halter but for the last year or so has done nothing but hang out in the pasture of the previous owner. She took great care of him but had no time to work him.
So yeah I agree he will need to hit the weight room
He has filled out some in the past month due to the increased hay. He was getting 1/3 bale per day and was a bit under weight. Our trainer (God bless her) bumped the hay up to add some weight.