Adding scissor jacks for side to side leveling

Give it a try with a cheap bottle jack or two and see if everything works out. I know on my trailer if I get too aggressive with the corner jacks it warps the frame and the bathroom door won't close or latch. The first time I experienced this the striker was a full 1 inch above the hole in the door jamb. And my trailer is an older Jayco with a pretty stout one piece I-beam frame.