The hotels, in Peterborough, Cambridge and Stevenage, will be run by Welcome Break under the Days Inn brand under lease from Swayfields, the operator of Extra motorway services, where the hotels are located.
The properties, which have been closed since March, will all reopen next Monday (13 July).
Welcome Break Hotels operations manager Darren Woodhouse, said: "The new hotels are in excellent locations and we believe they will appeal to both the commuting business guest and the leisure guest.
"They will bring the total number of Days hotels operated by Welcome Break in the UK to 26, offering a total of 1,647 bedrooms."
RHG, which comprised 19 separate limited companies, had assets including 39 hotels under the brands Purple, Stop Inn, Quality, Clarion and Comfort Inn as well as the jewel in the company's crown, the New Connaught Rooms in London's Covent Garden.
The company was forced to suspend its shares from the Alternative Investment Market (AIM) in January this year, before calling in administrator BDO Stoy Hayward.
By Gemma Sharkey
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