General priority
1- Buyer in Ordinary Course 2- Perfected Attached Creditor 3- Lien Creditor 4- Non-Ordinary Course Buyer 5- Attached Unperfected Creditor 6- General Unsecured Creditor
Early filing
OK even at onset of loan negotiations
Must have filed first and later attached
PMSI v. AACF PAC with equipment as collateral
PMSI has priority if it files properly within 20 days of debtor taking possession
PMSI v. AACF with inventory as collateral
PMSI has priority if:
files properly before debtor takes possession
AND
notifies AACF PAC before debtor takes possession