Very high. They run about 2.5% to 2.8% in the burbs. Almost impossible to cashflow a home in the burbs. In the city the taxes are less.
The more expensive a home, the harder it is to rent for cashflow. Expenses are higher and renters who can afford that are generally able to buy. Only people who rent are those who are in transition: medical residents, professionals on temporary assignment, those waiting for their houses to be built/renovated; while supply is high because a lot of owners who want to sell will rent to defray some of their carrying costs.