>> "1. Is there a way to make NON-Verified trials checked by default?"
No. We don't recommend using unverified trials.
>> "2. is there a way to extend the date the default "Trial extension expires" date that defaults to 2 weeks. I'd like to bump it up to at least one month."
We'll consider that. If you're generating so many trial extensions that this is an issue you might consider making a 1-click solution for your back-office software (using the web API).