Beth Marshea is the owner and lead agent at San Francisco's boutique Ladderbird Literary Agency, specializing in voice-driven fiction and cultural nonfiction with a laser focus on BIPOC, LGBTQIA+, and disabled voices across adult, YA, and a selective children's list.
In brief
Beth Marshea's confirmed client work clusters around two clear strengths: culturally specific literary fiction (Catherine Adel West's Chicago-set novels earned major 'Most Anticipated' recognition from outlets including Ms. Magazine and USA Today) and LGBTQIA+ history (Martin Padgett's two books on gay Atlanta and gay-rights legal history show a real relationship with narrative nonfiction about queer communities).
Despite a broad stated wishlist spanning adult through picture books, the verifiable sales record is anchored in adult literary fiction and narrative nonfiction — writers in those two lanes have the strongest evidence of a working track record here.
The wishlist is notably values-first: nearly every category specification names a community (BIPOC, LGBTQIA+, disabled writers) rather than a plot trope — which means voice, perspective, and author identity are at the center of how Beth evaluates manuscripts.
Beth explicitly dropped science fiction from the acquisition list — the earlier directory listing of 'fiction' broadly should not be read as including SF; the wishlist's own statement that acquiring SF has ended is the authoritative signal.
Queries are CLOSED as of July 1, 2025 — confirm the live submission form before querying, as the open/closed state can change without notice.
Lately
As of July 2025, Beth's submission portal was directly observed in a closed state. Writers should check the live form before preparing a query, as the window can reopen without a separate announcement.
What Beth is looking for
Beth's single strongest confirmed sales category. Looking for manuscripts with a distinctive, finely crafted voice and an elegant style — prose that earns attention on its own terms. Unusual or non-Western settings are a plus. Particularly drawn to multigenerational family sagas and found-family or friendship-centered stories. Writers who are BIPOC — especially Latinx or Indigenous — are a stated priority. Hard pass on plots in which sexual or physical abuse is the central dramatic engine.
Seeks culturally driven narrative nonfiction: books excavating hidden or unusual histories, issue-driven projects, and works that reframe our understanding of spiritual or esoteric traditions (witchcraft, paganism, and related practices). Books rooted in Judeo-Christian traditions are not a fit. The confirmed nonfiction sales all sit at the intersection of LGBTQIA+ history and cultural storytelling, which suggests that angle carries real weight.
Drawn to multicultural romantic comedies and meet-cute stories, especially with LGBTQ+ leads. Also welcomes family dramas, stories built around female or queer friendships, and work that balances lightness and emotional resonance. The overall tone requested is warm and fun without being shallow.
Cozies with a distinctive angle: an offbeat or unexpected setting, or a fresh BIPOC perspective that gives the genre a new narrative voice. Standard-issue small-town cozies without a distinguishing element are a harder sell.
Wants genuine edge-of-your-seat suspense. A key differentiator: Beth actively seeks thrillers set outside the United States — international settings are a strong plus, not a risk. Thrillers whose central plot engine is violence against women are an explicit non-fit.
Fast-paced stories built on non-European folklore and mythologies. Has called out Latinx folklore specifically — new imaginings of figures such as El Cucuy, El Sombrerón, and Duendes are mentioned as exactly the kind of source material Beth is hoping to find. Non-European characters and world-building are central, not decorative.
Actively seeking YA that centers found family and the messy, high-stakes texture of friendship. LGBTQIA+ rom-coms are an explicit priority. Settings outside the U.S. are a standout plus. Emotional resonance is non-negotiable — Beth wants stories that genuinely hit.
High-stakes plots with emotionally complex friendships under pressure. Almost any YA mystery or thriller subtype works if it brings an original point of view and keeps emotional grounding front and center. One firm preference: Beth does not enjoy unreliable narrator structures in this category.
Folkloric YA fantasy with happy or hopeful endings. Stories that make friendship — rather than romance — the emotional center are particularly welcome, though the emotional depth of that friendship should be fully realized. Similar non-European folklore preference as in adult fantasy.
Building a very selective MG list. Looking for contemporary stories with compelling kid characters wrestling with real middle-school realities: friendship dynamics, family disruption, gender identity, attraction (or asexuality), and isolation. MG fantasy is also of interest when it explores the same emotional terrain. The emphasis on queer and BIPOC representation applies here as strongly as anywhere on the list.
Acquiring very selectively. Wants books with an irresistible hook or meaningful, inclusive messaging — the stated benchmark is work that bridges the parent-child reading experience, with language accessible to young children yet genuinely engaging for adults. Queer picture books by BIPOC and disabled creators are the clearest priority.
Not the right fit
On Beth's list
Taste fingerprint
How to query Beth
Confirm the form is open before doing anything else — it was closed as of July 1, 2025, and there is no announced reopening date. Submitting to a closed form wastes your query.
The wishlist is unusually values-explicit: Beth is not just looking for stories featuring diverse characters but specifically seeks work written by BIPOC, LGBTQIA+, and disabled authors. If that describes you, say so clearly and naturally in your query letter — it is directly relevant to how Beth evaluates submissions.
For adult literary fiction, lead with voice. The two confirmed literary fiction clients both earned broad critical recognition for their prose and their culturally specific, emotionally grounded storytelling. Show the same qualities on page one of your sample.
If your thriller or fantasy is set outside the United States, name the setting prominently in the query — Beth has explicitly flagged international settings as a draw, and burying that detail undersells your manuscript.
For folkloric fantasy — especially Latinx or Indigenous mythologies — name the specific tradition or figure your story draws on. Beth has called out particular figures by name, which signals genuine familiarity with the material; vague references to 'Latin American folklore' are less compelling than specifics.
Middle grade and picture books are described as a very selective, still-developing list. Writers in those categories should note that the bar for standing out is higher than in Beth's more established adult categories.
Do not submit science fiction — it has been explicitly removed from the acquisition list regardless of what older directory listings may suggest.
Avoid manuscripts in which sexual or physical abuse is the primary dramatic focus, or thrillers whose central tension is built around violence against women; these are stated non-fits regardless of other strengths in the manuscript.