Assalamu alaikum ustadh. Due to an unfixable issue, a non-mahram resides in our house, the guy mostly stays in his room or goes outside... But during 2-3 times I wasn't fully covered and the guy might have seen me. Am I sinful? Though i always try to make sure he isn't there but he randomly came

Ustadh AbdulAziz al-Haqqan

U should not be heedless always cover up and wear your hijab at home, only take it off in your room. And he also should make sounds before he enters anywhere so that if there is someone uncovered they can cover up.