@Matthew Carducci
First, you may not have that high of expense, if you are lucky. However, as stated you did not include all expense areas. Such as Vacancy, Credit losses (uncollected rent and skips), Pest control, legal, accounting, leasing. You did include lawn care, but, how about snow removal?
Every property does not have every expense obviously. But, you must go in expecting them until proven otherwise. Good cash flow is extremely important to me. That's why I am very conservative in analysis.
Here's how I generally break down the 55% expenses:
10% Property Management
10% CapEx
5%. Maintenance./Repair
5%. Vacancy
5%. Credit loss
5%. Tax & Ins.
5% - 10%. Utilities, Lawn care, HOA fees, etc.
5%. Misc (Pest control, Legal, Accounting, Leasing)
Of course these are adjustable (I.e. newer properties need less CapEx)
Other things to consider are age of property, category of property and neighborhood (A, B, C, D). A & B would probably have less tenant problems and turn over. So less maintenance required.
Remember, this is my guidelines. Others have less stringent ones. You may analyze 100 properties, put offers in on 10, and end up purchasing only one. I don't know about you but I don't want OK deals, I want good to great deals.