Formal Content Writing Needed

I’m looking for an experienced writer who can craft polished, well-structured content in a consistently formal tone. The exact formats may vary—articles, white papers, or executive summaries—but every piece must read professionally, be fact-checked, and follow any style guidelines I provide. Key expectations: • Thorough research and accurate sourcing when claims or statistics are included. • Clear, logical flow with concise language that still feels authoritative. • Grammar, spelling, and punctuation must be flawless—ready for immediate publication. • Revisions until the final draft fully meets the brief. If you have a portfolio that demonstrates formal, business-level writing, I’d like to review it. Let me know your typical turnaround time per 1,000 words and any subject-matter strengths you have so we can align on topics quickly.