MPJ Publishing in Baltimore: Manuscript Editing and Author Services for Self-Publishers
MPJ Publishing is an editorial services firm based in Baltimore that helps self-published authors and small presses refine manuscripts before print or digital release. Unlike publishing houses that acquire and market books, MPJ operates as a standalone editorial shop, handling developmental editing, copyediting, and proofreading without offering distribution or marketing services.
What MPJ Publishing actually does
MPJ Publishing focuses on the editorial phase of book production. The firm works with fiction and nonfiction authors who have completed drafts and need professional feedback before submitting to agents, uploading to platforms like Amazon KDP, or sending to a printer. Editorial work is distinct from the design, layout, and distribution that follow; MPJ does not handle cover design, ISBN assignment, or bookstore placement. This positioning matters for Baltimore authors weighing their options: you are paying for editorial expertise only, which can be cheaper than a full-service hybrid publisher but requires you to manage or outsource design and production separately.
Services and pricing
MPJ Publishing typically offers three tiers of editing:
Developmental editing (also called substantive editing) addresses plot structure, character development, pacing, and overall narrative logic. This service is heaviest in feedback and markup. Pricing generally ranges from $50 to $75 per hour, depending on genre complexity and the editor assigned. A 300-page novel manuscript might require 40 to 80 hours of developmental work, putting the total between $2,000 and $6,000.
Copyediting corrects grammar, consistency, style guide adherence (Chicago Manual, AP, or house style), and factual accuracy. This is lighter than developmental work and typically costs $40 to $60 per hour. A 300-page manuscript might need 20 to 40 hours, totaling $800 to $2,400.
Proofreading is the final pass, catching typos and formatting errors after layout. This is the fastest service, often charged at $30 to $50 per hour or per-page rates (roughly $1 to $3 per page for a polished, nearly-final manuscript).
Confirm current rates directly with MPJ; editorial pricing can shift with demand and editor availability. Many Baltimore authors also ask whether the firm offers package discounts for bundling all three tiers or whether rush turnaround carries a premium fee.
How MPJ Publishing compares to other Baltimore editorial options
Baltimore hosts other editorial services, each with a different focus. Sage Editing, also locally based, specializes in academic and scholarly manuscripts and often charges higher hourly rates ($75 to $100+) because of expertise in citations and research integrity; choose Sage if you are publishing an academic monograph or dissertation. Scribd Editorial Services (with a local presence) tends toward genre fiction and offers both editing and some design support, making it suitable if you want a closer-to-turnkey experience than MPJ provides. Freelance editors through platforms like Reedsy or Upwork cost less per hour ($20 to $40) but lack institutional oversight, so quality varies widely.
MPJ occupies a middle ground: more expensive than platforms but cheaper than full-service hybrid publishers, and faster-turnaround than academic presses. Choose MPJ if you want experienced editors, clear contractual terms, and local accountability. Choose Sage if your manuscript is scholarly. Choose a freelancer if budget is your primary concern and you are comfortable vetting credentials yourself.
Who MPJ Publishing suits and who it does not
MPJ is the right fit for unpublished or self-published authors who have a completed or near-complete manuscript and need professional editorial feedback before release. Fiction writers preparing for agent queries benefit from developmental editing; self-published authors preparing for KDP or print-on-demand benefit from copyediting and proofreading. Authors with a timeline of weeks or months, not days, suit the firm's workflow.
MPJ does not suit authors looking for publishing contracts (the firm is not a publisher and does not acquire manuscripts). It does not replace a literary agent's submission guidance. It is also not the right choice for authors who need design, formatting, or marketing; you will need to hire those services separately or use an all-in-one platform.
What to expect on your first engagement
You will typically submit a manuscript sample (20 to 50 pages) along with a brief outline of your project: genre, target word count, publication timeline, and what tier of editing you want. MPJ will assess turnaround availability and provide a quote. Once you agree and pay a deposit or full fee upfront, you will receive a timeline for delivery. Edited manuscripts return with tracked changes in Microsoft Word or Google Docs, plus an editorial letter summarizing major findings (especially for developmental editing). You then revise, and many authors request a second round of lighter copyediting on the revised version. This iterative process usually runs 4 to 8 weeks depending on manuscript length and complexity.
Hours, location, and logistics
MPJ Publishing operates as a service firm without a public walk-in office. You will communicate remotely via email, phone, or a project management platform. Manuscripts are submitted digitally; there is no in-person component. This makes turnaround predictable and logistics simple for Baltimore authors: you work from home and track progress online. Confirm submission format and preferred payment method (check, PayPal, wire transfer) before your first engagement.
MPJ Publishing fills a practical gap for Baltimore authors caught between DIY editing and the cost of a traditional publisher. Its combination of local expertise and transparent service model makes it a natural choice for serious self-publishers and agent-track authors unwilling to skimp on editorial quality.

