As to what’s going on with the building. Har Sinai and Oheb Shalom are merging and at least for now will be using Oheb Shaloms site on Park Heights across from Baltimore Hebrew Congregation. So it seems they sold the building to someone that’s turning it into a wedding hall.
I’m not sure about the having to pay membership part as there’s no Frum Shul out there and it wouldn’t work well for people who don’t drive on Shabbos since it’s pretty rural.
