SOLVED. YA chapter book about a red-headed boy who lives in an apartment in New York City with his family. He has a very young sister who is a big plot point and the family has a pet bird. [s]

[Claire]

I read this as a paperback book around 2011-2014, and it seemed slightly dated then. I believe the doorman was also a relevant character and perhaps the boy had a dog.

[Griffin]

Tales of a Fourth Grade Nothing by Judy Blume?

[Griffin]

Maybe it's Superfudge by Judy Blume, which is the next book of the series.

[Claire]

Update: this was solved!!

[Claire]

Griffin wrote: "Tales of a Fourth Grade Nothing by Judy Blume?"
Yes!!!! thank you!!!!

[Capn]

(Tales of a Fourth Grade Nothing for trackable link)
:)

[Kris]

Glad you found your book, Claire.

"Fudge" series by Judy Blume - Griffin's find:
https://www.goodreads.com/series/5068...