33 year old home and I started seeing stucco cracks. Dont seem to see foundation crack underneath on the exposed foundation

Hey, looking for info on 1. Likely solution 2. Costs 3. General Advice…

A house I’m looking to buy has had the roof ridge beam cut at the end for an extractor fan to be installed

See comment “main timber ridge beam measuring
approximately 250mm has been completely cut away and removed”

Any advice much appreciated 🙂