Hotel Denouement Fire (possibly)
Esmé Squalor (formerly)
He is very trusting, but dislikes confrontation and will not challenge Esmé even when her actions could harm the Baudelaire. Jerome avoids disputes with Esmé, as he hates arguing with her, and follows her instructions. In this sense, Jerome is a pushover.
He is also less of a follower of fashion than Esmé, and dislikes the idea of buying superfluous items because they are 'in'. He is rich and successful, but this position is abused by Esmé to gain access to the Baudelaires.
The Ersatz Elevator
Jerome first appears in The Ersatz Elevator as their guardian. While very kind, he does not believe the orphans about Count Olaf and refuses to take any sort of protective action for them.
At the end of The Ersatz Elevator, Jerome offers to take the Baudelaire orphans to a place of safety, but they refuse, as their friends the Quagmires are still held captive by Count Olaf. Jerome then walks away, leaving them once more in the care of Mr. Poe.
He is a friend of Jacques Snicket and it was because of Jacques that he bought the penthouse apartment in 667 Dark Avenue. Jacques told him not to marry Esmé, but the letter was intercepted by the hook-handed man.
The Penultimate Peril
Jerome reappears in book the twelfth: The Penultimate Peril. Feeling guilty at his desertion of the Baudelaires, he has been researching their case and writing a book about injustice, Odious Lusting After Finance (note that the initials spell OLAF). He gives the book to Justice Strauss to be used as evidence at Olaf's trial, but Count Olaf kidnaps the judge and escapes, and uses the book as kindling to set fire to the Hotel Denouement.
It is unknown if Jerome survived the fire that claimed the Hotel.
- Jerome's initials are J.S. In The Slippery Slope, Klaus decodes a Verbal Fridge Dialogue message, in which the initials of the addressee of the message are J.S. It has never been stated who the J.S. was, but could be Jerome.