As pointed out, if Jacobs is found to be liable for her death, his estate, including the equity in his home, equity in his 2007 Escalade, and other property could be sold to satisfy a judgement against his estate. The filing of a suit will be considered a claim against the estate and with appropriate legal action will stay distribution of his estate to his heirs (parents) until the wrongful death claim is resolved.
This has nothing to do with greed. Assuming that Jacobs had a mortgage and a car loan, it is very possible that attorney's fees could outweigh the value of the estate on an hourly basis.
On the other hand, if Jacobs somehow had paid his home and car off and the estate is worth in excess of $250,000, an attorney would take the case on contingency. However, in that event, Jacobs's heirs would probably fight the case to protect their claim to the estate proceeds.
Any way you look at it, it's a terrible tragedy and messy aftermath. Filing a wrongful death suit is befitting the initial stage of grief, which is anger.