However I get a very nice cash flow on top of that the property appraised for 475k a few months ago. 

Three or more months and have the renters pay for water and electric but offer Internet and yard care. 

Personally, I think the taxes are high and the services you get for your taxes low there.I know people that invest in Detroit but you must know the area down to the street and have excellent property management.However, I just talked to my CPA today about a referral he was sending me who is a client of his that has 30 rental properties in Detroit and selling them all because the City doesn't really help, charges for everything, and they never have given a security deposit back to a tenant after they stayed because of their behavior or lack of payment.

Considering tenants are more likely to move during the summer months, do you think it's wise to schedule leases to expire during winter months?

Personally I wouldn't use Zillow, I can only imagine they want to introduce a future fee for the service.

Property managers want to be paid fairly and if you low grade everything too much you will get a fair amount of service based on that which won't be much.   

Accepts 12 or 24 months of personal or business bank statements.

What platform or service do you use to find owner's phone number for cold calls?

My main concerns are health & safety, along with the ability to insure the property for $300 or less per month.

If you are setting aside funds for capex, taxes, insurance, or other expenses that don't occur monthly, transfer those funds to Savings each month and hold them there until it's time to spend them.