Campaigners occupying Apollo House say they will apply to the High Court for extension of time to vacate the building.
The Home Sweet Home group claims that the alternative accommodation being offered to some residents is not what was promised in negotiations with Housing Minister Simon Coveney.
The High Court had ordered the activists to leave the office building by noon tomorrow before the case returns to court on Thursday.
However, spokesman Tommy Gavin said that eight residents have returned to Apollo House claiming they were given beds in "wet" hostels where alcohol is allowed instead of dry facilities as promised.
The Home Sweet Home plans to hold a protest outside the building tomorrow morning before the High Court deadline.
It is understood that 18 people remain inside Apollo House including five couples.
Although most are believed to be willing to accept hostel accommodation up to six people have said they will refuse to move.
Staff from the Peter McVerry Trust who have so far found beds for 65 people from the Apollo House are expected to visit the building again in the morning.
Earlier, Mr Coveney said he hopes Apollo House will be vacated by tomorrow and that everybody accepts it is not a long-term solution to the problem.
Mr Coveney said the extra two emergency shelters to be provided by Dublin City Council over the coming months had been agreed on before he met representatives from the Home Sweet Home group yesterday.
Mr Coveney added that three new hostels have opened since 9 December and an additional 100 beds will be opened soon.
The Home Sweet Home group claimed they had secured two new homeless hostels at the cost of over €4m, to include improvements such as residents having their own keys, the provision of private rooms and facilities for couples.
Speaking on RTÉ’s Today with Sean O'Rourke, Mr Coveney said there was a need to increase emergency accommodation for couples generally and there would be wide consultation to make sure that new facilities provided accommodation that provided for the complex needs of those who needed it.
In addition he said that 350 homes will be provided through rapid build by the middle of this year.
Mr Coveney restated a commitment that all families should be removed from hotels or B&Bs by 1 July.
Separately, Mr Coveney defended an initiative to allow libraries stay open for extended hours by using a scan-in technique.
He said that many users of the pilot scheme find it very helpful, and insisted it was not about replacing librarians or libraries which were, he said, an extremely important part of community life across the country.