Hi, just to answer your questions:
1. I'm very good at my work in Wordpress (check my reviews), and one of the best here in the platform in terms of quality. I have over 10 years working wordpress projects.
2. Yes, from scratch. Fixing some crap from other crappy developers that just use copy paste coding in custom themes or modified themes. Also worked Divi, Xtheme, Avada, etc.
3. You tell me, I'm writing here, but my English written communication is around 95% good. Worked in the past as chat support for hosting companies.
4. -6 gmt (Central America)
5. If is urgent, I can do it quickly. I DONT like to work hourly based, because I take 10 minutes to fix things and sometimes a few hours, that other developers could take a couple days, so time based doesnt work for me in terms of money. But the quality of what I do is a plus, also the support I provide once I finish.
6. Weekends and night time
7. I prefer to work all the tasks for a fixed price.
8. I have created custom payment methods for bank using 3D Secure guidelines, worked with paypal before, braintree, stripe, HPS, etc.
9. I worked for an airline as Software QA for 4 years. So I worked as a tester and I do test my projects.
10. For the right price, quality is a must. Talk is cheap and lies are expensive.