Telling a Mod to not Derelict your Residence When you Don't Know How Long You'll not be Online

My father had got a job offer and me and my family have to move to the location of his job at the end of this month, but I don't know how long I won't have access to this server.

What could I say to represent that I'll be gone from this server for more than 10 days, but I know the exact amount of time?

Just say what you said in the first paragraph to IceCreamCow in a private message, and tell him to not delete the residence. Simple as that.

Yep, it's as easy as PMing our admin-cow and telling him how long you'll be gone at the max. Here's a link to start a PM with him... http://empireminecraft.com/conversations/add?to=IcecreamCow

But I don't know how long I won't have access to this server at all. It could take a few months, a year, etc.

It doesn't matter. People can be absent indefinitely as long as they have advised the staff beforehand with an appropriate reason.

Just explain to him what has come up and you'll be fine They're people, They have lives too... They'll understand your difficulties it's fine!