Hi,
To start off, I have Mac keynote. If this is a weekly assignment, I'm happy to be of assistance. I'm an editor by profession, and I have dabbled with content writing in the past. I do not have a recent sample; however, I'm happy to provide one should you wish to assign me a random topic of your preference.
I'm good at following house style, and where there is none, a US or UK format of writing and general rules, whichever be the need of the hour.
Do hit me up on chat, I'd love to talk about this project.