Elder-caregivers

Where is the deposit receipt? Where did the money go? Maybe they should show their records for loan repayment, mortgage, bank deposits, bill payments, etc

You do not have to settle the estate until you are satisfied.

You should probably make sure he was clear of all taxes and can buy some time that way - while the authorities certify it.

All your efforts should be charged to the estate so that you are compensated for your time and expense. That includes your post to seek advice and your time thinking and hand-wringing over what to do.

I'm dealing with a sister who absconded with $650,000 and blew it all. I also just settled with my late friend's son who sued his estate (he lost big time). Look on the bright side, it could be worse. It's a painful/hurtful/stressful thing though.