The self guides are helpful to answer questions as well. https://nhlegalaid.org/self-help-guides/housing/evictions

Edit: One of the biggest area of concerns right now is landlords using a renovation eviction as a legal way to remove long time tenants. There’s really no recourse for a tenant. https://read.nhbr.com/nh-business-review/2022/03/25/#?article=3951313