It would seem that this court challenge has a very small  chance of success.
Just a note about the vote Jill Stein received 48,795 votes in PA! 

Stein switches tactics in Pennsylvania recount drive 

https://www.yahoo.com/news/us-green-party-drops-election-recount-bid-pennsylvania-020036851.html

Former Green Party presidential candidate Jill Stein switched tactics in her campaign to force a recount in Pennsylvania, one of three battleground states won by Donald Trump where she has challenged the results.

The party dropped a bid to pursue the recount in a state court, citing difficulties raising a million dollar bond demanded by the tribunal. It said it would instead press on in federal court and file suit Monday.

That was also Stein's deadline for raising the bond money."Make no mistake -— the Stein campaign will continue to fight for a statewide recount in Pennsylvania," attorney Jonathan Abady said in a statement."

Over the past several days, it has become clear that the barriers to verifying the vote in Pennsylvania are so pervasive and that the state court system is so ill-equipped to address this problem that we must seek federal court intervention," Abady said.

"Petitioners are regular citizens of ordinary means. They cannot afford to post the $1,000,000 bond required by the court," read a filing submitted earlier in the Commonwealth Court of Pennsylvania, announcing the state court drive was being dropped.



Lawrence Tabas, said the case had been meant “solely for purposes to delay the Electoral College vote in Pennsylvania for President-Elect Trump.”
https://www.washingtonpost.com/national/green-party-drops-bid-for-statewide-pennsylvania-recount/2016/12/03/7b3b7482-b9b5-11e6-939c-91749443c5e5_story.html?utm_term=.37020841923a