In landlord tenant matters things like non payment of rent are slam dunk, noise complaints lease violations by either party to the lease lack of notice for non emergency entry are things that take hard proof and more than on incident so like if a LL enters with out notice once and is caught by a nanny cam the tenant can send the LL a certified complaint telling the LL ` I have video recording that includes date and time that tells me you entered my unit on X @ X time and I had not submitted to you any repair request so this is a notice to you that a reasonable notice to me before entering you are violating my privacy. In that spot if the LL did not do it again then NO problem , but if a LL did enter many times and there was so called proof like a nanny cam , its the many times that shows a court that there is indeed a problem. Same way with noise complaints if the LL were to use noise complaints as a claim to ask a court to evict a tenant then the LL needs police reports to prove it and not just one single incident since more than one would show a court a pattern. If the house you rent had the septic system go into failure again and you up and moved because of it how would you prove to a court that the house was not liveable, by getting inspections in there and if the home is condemned so be it then your lease is canceled by condemnation and your LL cant do squat about it other than fix it or leave it sit empty til they can fix it or sell it empty. Its up to you how you choose to deal with this , but a good choice that will not lead to you having to buy your way out of this lease is to give notice NOW that you will not renew and you will be gone by the end of the lease ( via certified mail ) then you can move when its nicer, take your time to clean and take pics of the general condition of this home and how clean you leave it. Then should there be any disputes about your deposit you can bring to court your pics if you have to sue the LL because the LL has not been fair about deductions.