Should one come into a shul late for ma’ariv and the tzibur are about to start the amidah, one says the amidah with them and only afterwards the shema with its berachos, (Shulchan Aruch, Orach Chaim 236:3) since saying the amidah with the tzibur overrides smichus geulah l’tefillah in ma’ariv. (Mishnah Berurah 236:11) There is another halachah that even if one completely “mixes up” the order of the bircos shema, the three paragraphs of the shema and the amidah, one has still fulfilled the mitzvah of davening. (Mishnah Berurah 60:5) Now consider the following scenario which often occurs: A person arrives in shul for ma’ariv when the tzibur are in the middle of the shema with its berachos. He has time to say, (for example) the two berachos before the shema and the first paragraph of the shema but no more, before the tzibur would reach the amidah. Should he say the aforementioned, followed by the amidah together with the tzibur, and then continue onwards from the second paragraph of the shema, or should he just wait till the tzibur begins the amidah and then say it with them, and afterwards say the shema with its berachos? It would seem from the wording of the Mishnah Berurah (236:11) that the second alternative is the one to be followed.

Although the almost universal custom in Eretz Yisroel is not to say “baruch Hashem l’olam” at ma’ariv, I have seen it written that at the K’hal Adas Yeshurun shuls in Bnei Brak and Beitar they do say it. (see:     www.kayj.org/forum/viewtopic.php?t=466&sid=e2e273793182296f226fc5ceddde13d2)  

In many shuls, the shliach tzibur says the words “go’al yisroel” immediately before the shacharis amidah silently, and this has been criticised as having no source. However, in contrast, there are poskim who say that it is a nice minhag to say these words silently, and Rav Moshe Feinstein is quoted as saying that he recollects from the days of his youth that this was the custom in all the yeshivas. (see: Piskei Teshuvos, volume 1, 66:10 and long footnote 86)

how does kadish fit into this if you dont say baruch hashem lolam?