I'd have backup cleaners or hire a company that has many cleaners at their disposal.You'll need some handyman contacts and HVAC companies.Once you have these you can handle the rest remotely.Check Turno, FB groups and the Next door app to find these people.

This will be important for tax purposes and overall financial management.If you're feeling overwhelmed at the end of all this, consider hiring a property manager or consulting with a real estate attorney who can guide you through the process and handle any legal concerns.

You don't think they are hiring geniuses to work the phones over there do you?

Rather find a partner who will contribute same as you and you hire a GC strictly to perform the work.

I can vouch for their character and their methods work, you just need to decide if you’d like to learn it and do it yourself or hire it out.

If its local to me, I'll hire one of my kids friends to live there for awhile.... give them some food $$ and have them crash in the unit rent free for a few weeks.

This is when you hire a PMC.

I hired a law firm, filled a bbb claim and my local news is inquiring about the issues with this company. 

If you have never done it before and do not know what all it intel's than I would suggest hiring a professional to handle it. 

If you just hire the cheapest or first PMC you speak with and it turns into a bad experience, please don’t assume ALL PMC’s are bad and start trashing PMC’s in general.