Jarvis, the stricken former private finance initiative (PFI) group, warned shareholders yesterday that it could cease trading in a matter of weeks if a refinancing deal is not agreed with its banks. The company is to announce the sale of its universities accommodation business as another step in its rehabilitation, having already announced a £25m property disposal to Network Rail to boost its working capital position. But the company left shareholders in no doubt that unless they approved the sale plans (to include its stake in the London Underground Tube Lines consortium), the company faced collapse by the middle of January.