Hi all. See the pic below. My issue start s with that Pella siding door leaking in on bottom. Upon investigating I suspected it came in under the door so when I went under deck to see the plate it looks like whoever built this deck was an idiot and didn't flash anything and removed the vinyl siding and butted deck straight to house up to the corner of the chimney. Water ran off deck and down chimney and rotted it out! Luckily it looks like the plate, rim, and sill of house aren't too bad. There's J track against everything so below the decking there's no vinyl siding. The J track along house wall is also loose so I'm betting the plywood is rotted from water whisking under that J track and without any flashing. The door is getting replaced next week. So how should I redo this? I have to lower the deck about 2" and after any rot is replaced should I replace the vinyl siding down to the rim joist then maybe redo the deck so it's off the house about 1/4". Also ignore the pics commentary that was for the inspection company.