Definitely establish up front that the Realtor does not intend to charge you any fee for services but will accept the commission to be paid by the bank. In many states, the Realtor who is working for the bank can also assist you with the sale. In other states, the seller's Realtor may not also assist the buyer.
Do you know a Realtor who works in the area where this home is located? Do you know and respect a particular real estate company? You can also ask friends who have been pleased with their Realtor.
Bottom line is YES, hire a Realtor who will work for your best interests even though the seller is paying for your Realtor services. Every home buyer should follow this advice.
For more information check out my blog - Top 10 Reasons to Hire a Real Estate Agent. Link below. Good luck!
If property is on the MLS, most probably there is a Commision included for the Buyers Agent. You migh need to pay a broker administration fee or similar, but is very low.