Offer: 550k w/ 55k downClosing cost estimate: 15kFinancing: 4.5%, 20 yr amortization  Gross Monthly Rent: $9975Yearly Vacancy at 15%: $17955Mortgage paydown: $31312017 Property Tax: $9000Yearly Management: $9576Insurance: $3000 (really unsure of this number)Utilities: $12000 per year (also very unsure of this number, I estimated high)NOI: $5,342 per monthCashflow: $2,100 per month

As we've grown to 120 units we continually struggle with managing the utilities for our rental units. 

Utilities are generally public and you can call them to get averages, taxes are public as well and can be pulled either from a assessor website or at their office, insurance companies can give you cash value and replacement value quotes by giving them an address, general rule for running calculations for vacancy is 5-10% of gross income, I have seen maintenance expenses all over the map (anywhere from $300-750 or a % of the rent - those vary depending on the number of doors in the deal as well as how much deferred maintenance has to be dealt with or how much rehab you are going to do to negate the deferred maintenance), contracted services, call a few landscapers and get quotes and use those for your analysis. 

If the rest of your buildings are running smoothly, I'd say the only common denominator is that TBT PM.Another idea is to send a "secret shopper" to go through the tenant onboarding process on these vacant units.Yet another is to see if you can reach out to your remaining tenants (under the guise of a customer satisfaction survey, for example) to see if they can shed some light on it.

I rent out the rooms.What I’ve learned is having a room w a private bathroom is golden for my tenants they typically come from other roommate situation sharing a bathroom, having a private bathroom they see it as a luxury..Typically when rooms are rent out utilities are included, high speed internet is most important Utility for them..

@Sebastien HitierDont know other places, but what I know locally here in San Antonio, for 150/sq feet you will construct custom luxury homes.

The termination of utilities could give you reasonable belief that she’s abandoned the property, but you’d still need rent to be overdue by 14 days and to serve a Notice of Belief of Abandonment. 

I got an email with the following message from Zillow "Contact support for advertising rentals in communities of 50 units or more", I am still waiting on a response from them.I then tried to list it on apartments.com and faced an error saying that subleases were not allowed and to call customer support if this was an error, so I did.

To encourage customers to insure to value, most policies have some penalty for underinsurance called a Co-Insurance pentalty.  

As long as the foreclosure was a 1st, and done properly, you will have “clear” title except for any HOA fees and current/back property taxes, maybe some utility bills.