It is good that you are happy about the tenancy (gift / offer / offering). I notice your concern with the 6-month (claus / clause / claws), but I am afraid I must insist on this. While I appreciate the (precarious / precariously / precariousness) situation that this could potentially place you in, I openly admit that I will only use this if (exhaustively / fully / intimately) necessary from my position. I do not wish to see my beloved property mistreated in any way. I have no doubt in your clean-living standards, but relinquishing this power makes me (appear / be / feel) most uncomfortable.