At the latest, Earliest

[Asdban]

Hi everybody,
Can someone please tell if following sentences are correct?

When do you want to see your apartment at the latest?
Where are we at panting of our apartment?
What is the earliest day you can finish all your work?
What is the earliest day by which you will finish your work?
How earliest can you finish your work?

I am not very good at English, wondering if above sentences look appropriate?
Thank You !

[Mister Micawber]

.
Try these:

When do you want to see your apartment at the latest?
Where are we with painting our apartment? (I suppose the question asks how far along the task is.)
What is the earliest day / the soonest you can finish all your work?
What is the earliest day / the soonest by which you will finish your work?
How early/soon can you finish your work?
.
_________________
Native English teacher at Mister Micawber's

[Asdban]

Thank you very much for your prompt reply.
Curious if you missed or dropped "of" after the word painting ( with painting of our apartment) in the 2nd sentence. How about if I write " where are we on painting of our apt."

[Mister Micawber]

.
No, no of.
.
_________________
Native English teacher at Mister Micawber's

[Tom]