I get some of the most funky files from architects...what you dont see in these drawings is that not only did they rotate the crosshairs but they then rotated the UCS to get everything back to a normal "north and south" Then when xrefed in to a sheet file they then changed the ucs of the viewport to rotate again back to the original way...
me..xref in thier background files, rotate the objects just xrefed in the new drawing so everything is a normal "North and South" and then save that file to work with. Now when I xref in that new file to a sheet file everything is on the UP and UP. And all I have to do is rotate the North symbol to show a true north. one day will start listening to me...:ugly: