Insurance company is using nonpayment tactics- any payout tips?

[Ryan Hall]

This is regarding a tenant occupied property that has needed a new roof for 6.5 months (hurricane Michael). 

The public adjuster has been working on this for me for five months to expedite the payout. The public adjusters have now mentioned that I should consider legal action against the insurance company who continue to tell us that [X particular task] needing completion for progress toward payout should be done "by the end of the week". At which point we get the run-around, and then the next task by the next particular week. 

How should I proceed to get them to pay?  

Any input is appreciated .. thanks in advance