Will my landlord/property owner care of I move in late?

Just call him and tell him that your being held up for a week or so. Being ever thing is turned on in your name there should be no problem. But it would be wise to let him know what is happening!

You pay rent the landlord dont care if you never move in

If you are paying rent, etc, they would not care at all.

As long as you pay the rent, the owner has no say / does not care (except for practical items like a cold apartment in winter could grow mold, or an empty apartment looks tempting to vandals). Take the time you need to move. The landlord is probably just being friendly.

It won't be a problem at all. Just call and let the landlord know. You will still owe rent for that time.

Everything is paid so I do not see why there would be a problem. They may be nervous & thinking you are backing out. Just let them know you are delayed but are still moving in. Communication is key.

should be ok. tell him why

landlord got his money , he does not care what you do with it

As long as you are paying rent, the landlord won't care if you move in later.

But you would be wise to give him/her a heads up, so they don't think something happened if they see the unit not be used.

if you paid your rent, it's yours