My party has two spellcasters - Tabaxi Divine Soul Sorcerer (me) with proficiency in Arcana (so he can create scrolls) and Tiefling Pact of the Tome Warlock with the Book of Ancient Secrets invocation; this allows him to write down any ritual spells he comes across and cast them as rituals.
Can my Sorcerer write down ritual spells, known to him, into a scroll for the Warlock to transcribe into the Book of Ancient Secrets?
Is there a difference between spells from Sorcerer and Cleric spell list?
Additionally, my Sorcerer has the Magic Initiate feat with which he gains Find Familiar (from Wizard spell list) spell - can he write down that too?
The core question is: are there ways to transfer spells from Sorcerer to Warlock, in this case? Can the scroll creation be skipped entirely? Maybe both characters can work together, in some way?