Debtor transferred property to relatives. Can he file bankruptcy in near future?

Anybody can file for bankruptcy. But if these people file for bankruptcy after they have transferred assets, the Trustee can seek to set that conveyance aside under certain circumstances.

I would suggest filing the lawsuit as soon as possible. If a bankruptcy is filed, then seek the advice of local counsel to assist you in order to protect your rights.

He can file but the trustee can undo that transfer within 4 years. If he files on your debt alert the trustee and you are likely to get paid from the proceeds once the trustee sells the property

If you have a court judgment against this person, not only could filing bankruptcy be a problem but the person may have criminal charges made for violating the "Uniform Fraudulent Transfers Act" which makes giving away property to evade payment of a debt illegal. Hope this perspective helps!