How to say “My brother-in-law's coming to paint the hallway this weekend, so don't mind the mess.” in Japanese

In Japanese

今週末(こんしゅうまつ)、義理(ぎり)の兄(あに)が廊下(ろうか)にペンキを塗(ぬ)りに来(く)るので、散(ち)らかってても気(き)にしないでくださいね。

Konshūmatsu, giri no ani ga rōka ni penki o nuri ni kuru node, chirakattete mo ki ni shinaide kudasai ne.