Mark O'Mara told the judge Friday that Zimmerman's family hadn't told him about the money before his client was given $150,000 bond.
Florida Circuit Judge Kenneth Lester says he wants to know more about the money before he decides whether to adjust the bond. The judge will make a decision on the bond at a later date.
Zimmerman is accused of second-degree murder for the shooting death of 17-year-old Trayvon Martin, who was unarmed.
Zimmerman claims self-defense. The neighborhood watch volunteer wasn't charged for more than six weeks, leading to nationwide protests.
