Maggie Sadler

Maggie Sadler – Editor

Dexterous, experienced literary professional keen to nurture creative energies and bring fresh voices to market.

Overview

My collaborative, author-first editorial approach has been honed over ten years of independent experience in the literary world. As a freelance professional, I nimbly work across genres from commercial to literary, and my publishing clients include Joffe Books, Brown Books, and Rubedia Publishing. Having extensively studied literature in both the United Kingdom and Canada, I am also capable of seamlessly transitioning between American and British English registers.

I specialize in growth-oriented but market-minded developmental editing, intentional line editing, meticulous copyediting and proofreading, savvy manuscript evaluations, and deft, informed manuscript positioning via submission package evaluations. I am dedicated to helping my clients plumb the depths of their potential through careful, personalized collaboration, guiding their original ideas with my unique creative energy through their adventures in storytelling. Whether you need someone to dig into your creative writing with a critical yet constructive, encouraging eye or simply need an empathetic ear to listen to your ideas, I am here to help you share your authentic voice with the world.

Services
Fiction
Historical Fiction Literary Fiction Romance
Languages
English (UK) English (US)
Awards
  • Memorial University of Newfoundland School of Graduate Studies Fellowship (2019-2020)
  • University of St Andrews Dean's List (2015-2016)
  • University of St Andrews North American Undergraduate Scholarship (2012-2016)

Work experience

Self-employed

Sep, 2016 — Present
- Proofread, copyedit, and developmentally edit manuscripts across genres with a gentle yet constructive touch - Workshop manuscripts with authors during coaching sessions, carefully curating voice and craft with intentionality and empathy - Collaborate to polish query submission packages for savvy market positioning

Howland Literary

Jan, 2026 — Present
- Evaluate submissions and acquire innovative voices in accessible literary fiction, upmarket fiction, and narrative nonfiction - Develop compelling pitch materials with a keen eye for tropes, trends, and community conversations - Engage in dynamic discourse, offer constructive critiques, and field pitches at literary conferences

Hewes House

Dec, 2023 — Present
- Mentor authors with hands-on coaching, ensuring support and accountability in all phases of story development - Assess manuscript strengths and weaknesses, developing author toolkits and a tailored approach for revisions - Collaborate to polish query submission packages for savvy market positioning

Corvisiero Literary Agency

Mar, 2023 — Jan, 2026 (almost 3 years)
- Developmentally edited and proofread manuscript drafts for continuity, character development, and strength of language - Scouted fresh, diverse voices in the literary fiction, literary speculative, upmarket fiction, historical fiction, and magical realism genres with special attention to historically marginalized or underrepresented voices in adult fiction - Liaised with publishing houses to bring new projects to print

Washtenaw Community College

Aug, 2022 — Present
- Provide detailed, intentional commentary on craft - Support students in developing critical literacy skills and writer toolkits - Coordinate curriculum materials for creative, business, and academic writing courses

Corvisiero Literary Agency

Nov, 2021 — Mar, 2023 (over 1 year)
- Evaluated narrative quality of manuscripts for prospective representation under senior agents - Coached first-time authors in manuscript development and narrative craft - Pitched prospective projects to publishers, emphasizing author ingenuity and creativity

Corvisiero Literary Agency

Jun, 2021 — Nov, 2021 (5 months)
- Tracked and responded to author queries utilizing QueryManager software - Brainstormed social media posts on querying advice, writing tips, and inspirational messaging - Researched and collated publication metadata for author foreign rights catalogs

Portfolio

Me & Her: A BRAND NEW unputdownable psychological thriller with a killer twist

Wennerberg, Kaelin

Joffe Books psychological thrillers, suspense and crime

Developmental Editing Copy Editing Proofreading
Marble

Catalana, Taylor

Modern Artist Press

Developmental Editing Editorial Assessment Proofreading Query Letter Review Book Coaching
Developmental Editing Editorial Assessment Proofreading Book Coaching
LAST GIRL MISSING a gripping crime thriller (The Jameson Guard Thrillers Book 1)

Pearce, Bill

The Books Folks Crime Thriller and Mystery

Copy Editing Proofreading
DEATH IN FLORIDA a gripping crime thriller (The Jameson Guard Thrillers Book 2)

Pearce, Bill

The Books Folks Crime Thriller and Mystery

Copy Editing Proofreading
Copy Editing Proofreading
Copy Editing Proofreading
Copy Editing Proofreading
Copy Editing Proofreading
Twisted Secrets: The addictive, high-angst, new adult romance (Twisted Pine Academy Book 3)

Juniper, Kai

Choc Lit Contemporary Romance: A Joffe Books Company

Copy Editing Proofreading
Twisted Sins: The addictive, high-angst, new adult romance (Twisted Pine Academy Book 2)

Juniper, Kai

Choc Lit Contemporary Romance: A Joffe Books Company

Copy Editing Proofreading
Twisted Lies: The addictive, high-angst, new adult romance (Twisted Pine Academy Book 1)

Juniper, Kai

Choc Lit Contemporary Romance: A Joffe Books Company

Copy Editing Proofreading
Copy Editing Proofreading
Developmental Editing Copy Editing Proofreading
Developmental Editing Copy Editing Proofreading
Forever Defiant: The angsty, enemies to lovers, sports romance (Fourth and Forever Book 2)

Mitchell, Eve L.

Choc Lit Contemporary Romance: A Joffe Books Company

Developmental Editing Copy Editing Proofreading
Developmental Editing Copy Editing Proofreading
Ruthless Ambition: The dark, enemies-to-lovers, touch her and die romance (Ruthless Devils Book 4)

Mitchell, Eve L.

Choc Lit Contemporary Romance: A Joffe Books Company

Developmental Editing Copy Editing Proofreading
Developmental Editing Copy Editing Proofreading
Developmental Editing Copy Editing Proofreading
Developmental Editing Copy Editing Proofreading
Proofreading
Developmental Editing Query Letter Review Book Coaching

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