Have you tried www.steempower.org/editor out? It's a steemit editor @charlieshrem had made, you can even have it post through there if you sign in. If don't want to sign in you can copy/ paste it over. (Just make sure you select markdown in the steemit editor before pasting)

If that doesn't work either, you can try download a markdown editor for the ipad like markdownpad through the app store. If none of those work, you can try using a template (check free-templates tag on steemit) or i can always put one together to suit your needs.

Ideally the new medium like editor the devs have been working on will fix the entire issue for you. But i at least wanted to offer solutions for now.

Feel free to dm me in steemit.chat or on discord you have any issues with these. Sure we can find a solution for you :)