LHow do I reverse or refuse a deed if gift?

You can certainly 'gift' all your shares back to those three heirs, but I bet there is a better solution available depending on how you now own the property. I would STRONGLY suggest you consult with a local real estate attorney to determine what if anything you can do. If the three have signed off to you, you and two others now own the whole property and perhaps it can be sold quickly or at least donated to the municipality who can demolish it and turn the property into a public park or whatever .... I am SURE there is a better solution that will both not cost you a lot and perhaps provide a benefit to either you or someone else (like the community) but without looking at all the details, we're all going to be shooting in the dark. Don't delay consulting with a local attorney - the more time available the better solution that can be worked out!

Owning a home with 5 other people, regardless of whether they are family, is a nightmare. Once you have accepted the distribution from the estate, i.e., you are on title (along with 5 other people), you cannot go back in time to disclaim the asset. You may, however, be able to dedicate the property to the city, but this also seems unlikely since you do not own the property in fee simple. I highly recommend you ontact a real estate attorney in your area.