1. The venue for the appointment of a guardian when the home state of the proposed protected person is this State must be the county where the proposed protected person resides.
2. If the proper venue may be in two or more counties, the county in which the proceeding is first commenced is the proper county in which to continue the proceedings.
3. Upon the filing of a petition showing that the proper venue is inconvenient, a venue other than that provided in subsection 1 may accept the proceeding.