I don't see any reasons to NOT move. It sounds like a very nice opportunity for you.
Do what's in your best interest.

I think you might be wanting to 'win' the battle about the property issues where you are, but one way to win is to leave them behind .
Give your landlord notice that you'll be moving; that's all he needs is the courtesy to have time to find another tennant. A simple letter giving the date you will be moving is all you need to do.

"Dear landlord,
This letter is to let you know we will be moving from (address) on (date). Thank you for the rental opportunity you provided.
Best wishes, "