In my case to remove the J-lounge I had to remove the drawer, unbolt the loveseat section and then remove the loveseat allowing access to the bolts holding down the J .
Typically in furniture the terminology refers to as you face it. If I understand you correctly you are considering buying a LAF (left arm facing) 1 arm reclining loveseat. Why not buy a loveseat with 2 arms & 2 recliners? Space? Other things to consider: it will probably need a couple of inches to recline,/ it will be 110v vs 12v,/ some residential furn. has the legs very near the front edges vs being recessed like typically seen on rv furn- will it fit on the slide?(if that's where your putting it),/ the non-arm end may not be upholstered (will it be visible?) / will it come apart to get in the door? Hopefully you've already considered these things and find that it works for you.
"weekend tailgater" 2003 Fleetwood Revolution 40C, 2Vino Scooters hitch rack or H-D FLSTC & XL1200 So. Ga. Cargo Enclsd Trailer-Prodigy wireless brake controller