Impairment must be described in behavior and frequency, not adjectives.
Replace 'poor hygiene' with 'showers once every 10-14 days; reports being asked to leave a job interview due to appearance.' Replace 'isolative' with 'leaves apartment once weekly for groceries; no contact with peers in six months.'
Gather evidence from multiple sources: participant self-report, observation, collateral, and prior records. Note the source for each statement.