No, no need to assign land to fap.I also played on myself and noticed that after several years (sometime near but before 1500) I suddenly got control of the Curia and was able to pass a Bull. So I guess the landless pope died at that time. Is it still necessary to grant land to the fraticelli pope via the console now? Also I was wondering why Muslim Sicily got Rome on conversion, when in the CK2 file it belonged to the Fraticelli pope. It would make sense to grant that province to FAP I think. Would the same console command work for that purpose?
Thanks for the help
EDIT: How do I find what number the Rome province is?
I looked at your save and your fapope is landless in it - he owns nothing.