Looking for Email Marketing Writing Assistant

Looking for an Email Marketing Writing Assistant:

1) Great at writing persuasive sales email copy
2) Can read and write English fluently
3) Can follow email writing guidelines
4) Will have task requests to write emails at random times throughout the week - need to be available on-call whenever during US business hours to write email copy when requests come up
5) Familiar with B2B technology products/services
6) Available by messaging app like WhatsApp so can work together on copy and back and forth feedback
7) Must have previous writing samples to share
8) Email copy typically ranges from 100-200 words per email. Will offer 5 USD per approved email copy. Will budget 100 USD to start for the project, so that equates to 20 approved emails retainer
9) If all goes well, longer term engagement is possible