I would look at installing door shocks. My driver side basement door is the same way. DRV,s have shocks on all basement door that raise. They designed them with shock that would allow them to stay at there highest point without hitting the slide or 5th wheel overhang.
Mike & Trish Romans 10:9
2011 Mobile Suites 36RSSB3 #5556
2017 F-350 CC 6.7 diesel dually, Banks Derringer tuner with super gauge