A few questions:
Is two men living with one woman, where the two men sleep on one floor and the woman ona different floor, in the same house, considered Yichud? One man is 17, the other 31, they are friends, and the woman is either in her 50s or 60s, not sure which. My friedn told me it’s permitted according to all Shittos, but I wasn’t sure. Also, even if it is permitted, do you think neighbors will suspect that inappropriate activity is going on? Is there a good way to ward off that assumption? There is a list-serv in the nieghborhood, and if I asked a local a Rav a Sheilah and he said it was okay I could let the people on the list-serv know that. Then there probably wouldn’t be too many raised eyebrows. If you have any other advice that you think would be helpful please let me know. Thanks a lot!
Two men with one woman is only permissible during the day. At night, when one man may be sleeping there is a prohibition of yichud. An additional man would be necessary to permit this situation.
See Shulchan Aruch, Even HAezer, 22:5 in the Rama.