Automatically delete user profile within scheduled task? - ARM

Hello!

im fresh to arm and i want to automate our user deletion process.

We got a 2step "delete".

1. Process: Softdelete - Deactivate User and remove Groups [only with ps: set timestamp for real delete process]

2. Process: Delete - Delete Useraccount and profile/home directory.

Question now:
Do i got the possibility to automate this with arm? 
The first step is partially automated, only the timestamp is missing.

In the second step would be the first problem; how to automate delete after 90days, therefore how can i tell arm to delete folders for a specific user? (commonly these are starting with the SAMAccountname).

Sorry for the grammar, dont know where to start..