Are 4 point inspections enough to find any deferred maintenance?

[Marcos Carbi]

Hi all, I'm looking to buy an 8-unit (4 identical duplexes) portfolio in Florida and was wondering if I should do a 4-point inspection (much cheaper) or spend the extra money and get a full inspection on all 4 duplexes. My main concern is any deferred maintenance. Luckily, all 4 roofs were replaced in Dec 2021. Additionally, should my offer include a 7 or 10-day inspection period? I'm thinking 10 to be safe but the owner wants 7. 

Thank you in advance for your time and advice!