You may also be interested in mishpoche (same kh sound), which approximately means "extended family" or "clan" or "kin" - it's not quite all the way out to "found family," but it includes in-laws and exes and so on; my mishpoche includes my brother's wife's sister's husband, if you see what I mean, my sister-in-law's brother-in-law (or my brother's brother-in-law, if you consider them to have that relationship, which I always have done but I understand that there are regions of English speakers where two dudes married to two sisters are not themselves brothers-in-law; isn't that interesting?), or my brother-in-law-in-law, if you'll allow it. ;-) Probably also his mother.