1. I am afraid that even if he is brought to court, he cannot forcibly made to pay any amount to you immediately without a court order.
The court will pass an order only hearing both the sides after conducting trial.
Therefore please be informed that just filing a case before court you will not immediately get the reliefs sought.
The procedure which is common to all has to be observed, one has to undergo different phases of the case during trial, and after final judgment too, the aggrieved party will approach the appellate court and may obtain stay of operation of the decree/judgment passed agaisnt it.
Therefore you have no other option than to wait and endure the situation.
2. About his medical ailments if he says before court that he suffered this problem due to this then it becomes is duty to prove that he suffers from this ailment with medical examiner's prescription and treatment particulars and cross examination of the doctor treated him for the disease.
But dont allow all such gimmicks to deter your determination of fighting back seeking justice.
The hurdles what you have mentioned are common which have to be overcome since you have decided to fight the legal battle till the end to get justice and remedy.