Who is familiar with rental laws in the state of MI.?

When my husband and I moved into this house (rental) last July the landlord had never rented a house before. He said that he wanted $925 a month because when he switched the land from his private residence to a rental property the property taxes were going to increase. Well he has proved to be less than an agreeable landlord. He wants us to maintain the property including trimming his mive trees in both the front and back yard. Well over the past weekend my husband noticed that a few very large branches from the front tree were so large they were hitting the house. So he took his ladder and his tools got up there and cut them down so that they wouldn't cause any damage to the house, in addition to those 2 branches there was a large dead branch (nothing growing on it, leaves, anything green at all) Well apparently he didn't want those branches cut down because he called and began to complain about the trimming of the trees. Our neighbor apparently called him and told him we were butchering his tree. So in my efforts to look up city laws regarding landlords, tenants, and city ordinances I came across the property tax information. Apparently he still claims this is his primary residence and is therefore exempt from the property tax increase that occurs when you make your residence a rental. Now I am beginning to wonder what else this prick is doing illegal. How do I report him for the Property tax info. not being correct? Here I have been paying additional money because he claimed renting it was gonna cost him more money when the whole time the property taxes have been going down rather than up due to the property loosing value due to the housing market and economy. Regardless what he is doing is wrong, I need info on what guidlines landlords have to follow regarding reporting to the city/county, laws and regualtions. A link would be helpful or any thank you