Some lawyers only charge if they win a case and will have a free first consultation. Usually alot of small local lawyers. Work trying to find one to have a quick first talk with and find out where you would stand.
But yes, of course you dont want to have to spend too much. I know court costs can often be claimed back as well if youre found in the right (obviously are).
One thing first though is you should check with her insurance company what time frame she has to lodge a claim, as if she legally has a month to lodge the claim, you dont want to press matters beforehand as its pointless.