multiple jumuah salaahs

Performing multiple Jummah Salaahs in one Musjid

Q: Is it permissible to perform multiple Friday (Jummah) Jamaats/congregation due to lack of space here in West? The masjids are far away and are small so cannot hold many people, due to which they perform multiple jamaats, so is it permissible? Also please tell us what if the same Imam who performed the first jamaat also performs the second Jamaat as well? Would the second prayer be valid? Please tell us about praying Friday in a masjid where the Khutbah is given in English instead of Arabic? I cannot find any masjid in our area where they give the khutbah in Arabic? Will the prayer be valid?