Without actual numbers, it is hard to tell you if the increase is too much, or justified. But, for sure, taxes have gone up substantially for all homeowners (reval was 2018 and, just 4 years later, the taxes are up just shy of 45%) and the cost of home insurance is up substantially (just read about GEICO and several other insurers filing notices with state regulators announcing substantial increases amounting to over 25%) and then there is the many other increases being charged to homeowners, like increase sewer and water costs.

Anyone renting a house in town should expect substantial rent increases. There is no way a small landlord can absorb those costs and not pass on at least some/most of it to the tenant.