How much of her $500 security deposit should he keep?

Return the whole deposit. Wipe the fridge out. Will take a few minutes.

i’d return it, the tenants were there for years and all that’s there is a little bit food bits left in the fridge? they’re respectful renters

Just give her back the deposit man lmfao, stop trying to get engagement

6 years? They deserve every penny back.

Return the deposit, looks like the fridge needs about 7 mins of cleaning

Return the $500. Looks really good.

Full refund and let the tenant know you can be a landlord reference for future apartments/job applications

He should go F himself because all landlords are scum!

Most places would keep it regardless and charge for what ever they feel like. I always get a professional cleaning so I can prove it was cleaned.

All of it!