A transfer made to hinder a creditor can be unwound for four years under the Uniform Voidable Transactions Act, or for one year after the creditor could reasonably have discovered it, whichever is later. Illinois adds a rule of its own: a trust you settle for your own benefit gives you no protection from your own creditors, however it is drafted. Those two rules shape what follows.
So the planning starts with what is already exempt. A qualified retirement plan is beyond a creditor's reach under federal law, and Illinois exempts IRAs, life insurance payable to a spouse or dependents, and $15,000 of homestead equity per owner. A married couple can hold the home as tenants by the entirety, which stops the creditor of one spouse alone. Moving an exempt asset into a trust can make it less protected, not more.
Above the exemptions sit the layers: an entity for each property or practice, a family limited partnership for investment assets, and a self-settled trust formed under another state's statute for what remains. Each is funded while you are solvent, then left to season, because age is a defense.