This ia a good idea. Some people focuses too much on coming up a new idea or a project development for the improvement of Bitcoin and the cryptocurrencies that they tend to forget that we can utilize existing apps like telegram.
I am actually part of the other groups in real estate investment and had not thought of this idea. Good job and happy trading to those who will join the group!
Indeed, it's a good idea since people can trade easily, looking for buyers or sellers.
One thing to note; do not send anything without escrow service, so there's no one will be loss.
It's better if you can find a local group in your country, which mean people in this group could transact using fiat currency as well.
May I know your group in real estate investment?