My finger was cut off at work. workmans comp kicked in and now everything is over. I only have 60% motion and full re-gain on my index finger. I got a check in the mail that state ADVANCEMENT FOR PPD WITH INTEREST. I have a few questions:

1.) What does PPD mean? I am assuming Partial Permanent Disability.
Should I cash this check? If I do will that be a indication that I accept what they are wanting to do and have not say in the settlement process?
2.) How long can the settlement process take?
3.) Will I get a lump sum or have say in what I get or pain and suffering, missed wages, ect?