Copywriting with topic research

I'm looking to create a sales letter and brochure. I need a native English speaking/writing freelancer who can create the text for this medium. I'm looking to introduce my new company to attorneys and surveyors on the benefits of using drones/UAS equipment in their accident reconstructions.

I don't want a sales letter that just states "use me and give me money.' It needs to be an introduction to how drones are changing the way vehicle accident scenes are mapped, the benefits, the safety, the accuracy, and speed of this new technology.

Drones have been around for a few years now, but are only just starting to be trusted in the field. I'm one of those companies and I'm looking to introduce the technology to these private companies and attornies, and introduce myself.

Information on the use of drones for your research can be found all over google, but here is a few examples to draw information, and quote sources:

https://www.commercialuavnews.com/public-safety/drones-used-ntsb-investigations

https://www.purdue.edu/newsroom/releases/2019/Q1/drones-shown-to-make-traffic-crash-site-assessments-safer,-faster-and-more-accurate.html

https://www.pix4d.com/discover-pix4dmapper?gclid=CjwKCAjwyo36BRAXEiwA24CwGSZXEsVV0zpgSs0AKUP_woKy6kEejGyFYs_LNcgo4BPHY2EVPy0FORoCFz4QAvD_BwE

https://www.analistgroup.com/en/new-solutions-with-drones/solution-for-traffic-accident-reconstruction

About me and my company:

Chief Pilot - Levi Blount, retired Air Force Officer, and Police Officer trained in Accident Reconstruction (ACTAR.org)
website (under construction) www.uavsurveyors.com
Based in Northern Illinois, USA
FAA Certified 107 Pilot

Reports produced include scene fly-throughs, points inventory, scene overview, and detailed .CAD file allowing for precise scene measurements from the comfort and safety of the office, many months, years after the fact for court testimony. I've attached a few files from a recent road scene that we photographed from the air. The process works by flying over the scene with a drone and taking multiple, overlapping images. These images are then mathematically stitched together using software Pix4D to make a 3D Orthomosaic map of the scene. This mapping is highly accurate!

Why use drones? The old method was to send out a certified surveyor and take multiple measurements with very costly GPS surveying equipment. The road had to be closed for hours while this took place, for safety and while the surveyor walked up and down the scene taking measurements. Now, a drone can make multiple fly-overs and photograph the scene from around 100 feet and can have the road open within 30 minutes. With a historic scene, the road never needs to be closed, vehicles driving through the scene are automatically removed from the scene imagery post-production. What were hours, is now minutes of on-scene work. The majority of the work with the new system is in post-processing on dedicated high-performance computers that render the scene from hundreds of high-resolution images taken on 4k drone cameras.

Let me know your thoughts and ideas. If you happen to also do graphic design, or have a contact, I'd be open to that also for a one-stop-shop for making this sales letter and brochure. Obviously the compensation will be adjusted to suit.

I look forward to working with you.