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I am sorry to hear about this situation. An adult guardianship proceeding must serve the ward (i.e. you). The only way he can do this without someone in your situation being served is:
-claim to have served you but actually did not. Service must be via certified mail with a signed receipt, or by constable or private process server that have to serve it to you. Out of these, process servers sometimes leave the summons on the door, etc, and then claim to have put it in hand, for example; OR
-he claimed that he could not find you and got you served via alternative means (such as newspaper notice), which would be very unusual.
Even if that happened, final guardianship cannot be granted until the Court assigns a special person to represent the ward (i.e. you) such as an amicus or ad litem, and they would contact you throughout the case. However, temporary ex parte emergency guardianship is possible in theory without such an assignment.
In short, this is highly unlikely.
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