What is a verbal contract What is filing fees and other cost Is this ethical?

Having counsel might have prevented most of your concerns. On fees, depends on what fees for what purpose. We are missing details. Verbal...

Plaintiff request to dismiss with prejudice would foreclose future claiming same ... Court would review, and you could challenge. May relate to...

Depends when you discovered this evidence to be false, what specific falsity and of what relevance, how recently the case was dismissed and on what...

Extensions depend on timeliness and rationale generally, but first try to get adversary's agreement

Check your judge's practice rules and here: https://www.in.gov/courts/rules/trial_proc/index.html

Correct, with limited time, it may be required (and generally is beneficial) for adversary and mediator to review (and possibly respond) in advance.

My colleagues and I would want to see more detailed description of your context, but generally yes the judge may allow various types of follow up...

Insurance claim can get those expert adjusters to assess liability

Deposition postponed?

Ask the judge to compel (and possibly sanction)

Disputes concerning the policy are controlled by the policy's dispute clause, generally