You can get inexpensive insurance or you can get insurance for a vacant property.

I have sent over the contract and EMD and was told the bank would get back to me within 15 days as to whether they approve the sale.I have a question about title insurance.

Banks will mandate flood insurance which is very costly and will have a huge impact on your ROI.

Title insurance  about 1/2% of sales price.

It is insured, paid off, and his is the only name on the deed.I am looking to move back to that area in 2019 when I am out of the military and sell my current home.

That means you or your company is responsible for payment of taxes and insurance.  

That with solid liability insurance is all that I feel I need (LLCs are very expensive and cumbersome to maintain in my state).

My wife and I owner occupy and self manage a 3-unit in Logan Square and will be going on vacation for just over 2 weeks and are looking for short term coverage while we are away.   

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. 

I believe (but do not know for sure) that no title company will insure a tax deed in any state without a quite title action.