A judge in Ingham County, home to Michigan's capital, Lansing, ruled that Snyder's action had violated the state Constitution because it could cut the pension benefits of retired public employees. The judge, Rosemarie Aquilina, said pensions were protected under state law, and issued an order that the bankruptcy filing be withdrawn.
Her ruling was immediately challenged by Michigan's attorney general, who appealed to the state's Court of Appeals on the grounds that the Chapter 9 bankruptcy filing stayed all legal proceedings related to Detroit's debt obligations.
While the ruling may be overturned, it underscored the mounting tension in the city and the legal battles ahead as bondholders, retirees and other creditors attempt to recover money owed them by the city.
Snyder and Detroit's emergency manager, Kevyn D Orr, estimate the city's debt and other long-term obligations at 18 billion dollars.
After weeks of mostly unsuccessful negotiations with creditors to settle debts, Orr recommended a bankruptcy filing to Snyder this week. The city then filed for Chapter 9 on Thursday, minutes before Aquilina was to hold a hearing on the employee pension funds' constitutional challenge to a potential bankruptcy proceeding.
The president of one public employees' union hailed the judge's decision Friday. "There is too much at stake to play political games with the hard-earned retirement security of Detroit's public workers," said Lee Saunders, head of the American Federation of State, County and Municipal Employees union.
But at a joint news conference Friday, Snyder and Orr were resolute on the need for a bankruptcy filing.
Snyder, a Republican who has pushed a pro-business agenda in the state, said Detroit had no other options to deal with its debts and improve city services ranked among the nation's worst.
"This is the time to say enough is enough in terms of the downward decline of the city of Detroit," he said.
Now that the city has filed, Snyder and Orr said they wanted to reassure Detroit's 700,000 residents that police, fire and other essential services will continue to function.
Orr, who was appointed by the governor, predicted that residents might start to see improvements soon, saying that the bankruptcy filing offers "breathing room" and will allow Detroit to use its limited resources to put more police cars and ambulances into service.
Depending on the outcome of the appeal of Aquilina's order, the initial bankruptcy hearings could begin as soon as next week.
On Friday, US Bankruptcy Judge Steven W Rhodes was picked to oversee the case. Rhodes is a hometown selection, having served for 28 years as a bankruptcy judge in the Eastern District of Michigan.
The initial stages of the case will consist of Orr and possibly state officials showing that there was no available remedy for Detroit's troubles other than bankruptcy.
"We didn't make this decision in haste," Orr said. "This is a decision that has been winding its way through the city for the better part of six decades."
Employee unions and creditors may argue otherwise - either by challenging the size of Detroit's debt, or Orr's assertions that he bargained in good faith to reach out-of-court settlements with bondholders, retirees and others.
Some labor unions had accused Orr of using bankruptcy as a threat during negotiating sessions.
Orr said that despite marathon talks with creditors, there was little or no movement toward settlements.
"We are finally at a point where we simply can't kick this can down the road any further," he said.
There is no blueprint for Detroit's recovery at this point. In the short term, Orr said that a deal with two secured creditors, Bank of America and UBS, to accept 75 cents on the dollar for $340 million in liabilities would free up casino revenues that could be used for city services.
The arrangement would provide the city with about $11 million a month in casino receipts. That cash is critical to keep the city safe and functional during a drawn-out bankruptcy process.
Orr said he expected Detroit to emerge from bankruptcy before his term as emergency manager ends in 14 months.
For Snyder, placing the state's largest city in bankruptcy is a calculated risk that its decline could be reversed under court supervision.
He said that he did not anticipate any direct state or federal money would be needed in the effort, but that government grants to help remove abandoned buildings and improve Detroit's infrastructure would be essential to the city's comeback.