Lenny (specifically the Eleanor IRM) is mentioned in an IRM proposal for Goodwin. The specific by-name mentions are:
Immediately, a wrench was thrown into her plans: a teenaged Eleanor “Lenny” Marijuana. Cast adrift by the shadows, Marijuana needed a place to stay, and Morin had an extra bedroom. Morin, was hesitant, having long since decided that she had no interest in parenting or caretaking, but allowed Marijuana to move in anyways. The rebellious Marijuana helped Morin cut loose, and Morin became something like an aunt to Marijuana and taught her about responsibility; the two lived together until Marijuana left the shadows.
and
Goodwin Morin achieved Legendary status on Season 18, Day 99. She left behind most of her worldly possessions, most of which were left to Marijuana, Semiquaver, and Milicic. The only things none of them could find were her favorite pen and notebook.
Also, since I'm here, I'd like to add the following line (or something similar) to the Eleanor IRM in the "Life in the Shadows" section:
She moved in with shadow teammate Goodwin Morin, who wasn't expecting to adopt a teenager, but did her best to make Marijuana feel supported.
