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Jill Marr

Closed
Sandra Dijkstra Literary Agency·US

Agent profile summary

Represents
commercial fictionupmarket fictiondark romanceromantasyromancespeculative fiction
+20 moremysterythrillergothichorrorhistorical fictionrom commagical realismcurrent eventstrue crimesciencehistorynarrative non-fictionsportspoliticshealthnutritionpop culturehumormusicmemoir
Looking for
Jill seeks fiction and non-fiction by unrepresented voices, BIPOC and Latinx writers, disabled persons, and LGBTQ+ people. She wants commercial and upmarket fiction emphasizing dark romance, romantasy, speculative fiction, mysteries, thrillers, Gothic, horror, and historical fiction, plus food-centric novels and psychological suspense in the vein of Freida McFadden. For non-fiction, she seeks authors with big, timely, smart messages and deep dives into subcultures, social commentary, and historical projects.
How to submit
Submit via QueryManager at QueryManager.com or JillMarr. Include query letter, 1-page synopsis, brief bio with publishing history, and first 10-15 pages for fiction. For non-fiction, include query letter and full book proposal.
View source·Agent page
Last checked 14 Jun 2026·Last verified: 14 Jun 2026
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Jill Marr is a literary agent at Sandra Dijkstra Literary Agency based in US. Their list focuses on genres including commercial fiction, upmarket fiction, and dark romance. Currently closed to submissions, with responses usually within Six weeks. Submissions via QueryManager. For current guidelines, check the agent's own submission page linked below.

Age Categories

Adult

Response Time

Usually responds within Six weeks

Notable Clients

Jess Armstrong, Erin Flanagan, Navessa Allen, Imani Erriu, B.R. Myers, Elle Everhart, Nancy Allen, James Patterson, Sulari Gentill

Notes

She specifically does not accept screenplays, poetry, or novellas. She rarely takes military or Western projects. Her horror tastes run toward Riley Sager and Paul Tremblay rather than slasher horror.

Related agents

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commercial fictioncrime & thrillermysteryhorrorscience fictionfantasyromancehistorical fictionupmarket fictionnarrative non-fictionmemoirhistoryhealth & wellbeingpolitics & current affairstrue crimesportsmusic & entertainment

This profile was last verified on 14 Jun 2026. PairPi tracks UK literary agents' submission guidelines against their own websites. If you spot something wrong, please email hello@pairpi.com.