... adjacent to the said lands with its houses, buildings, gardens, tofts, crofts, muirs, marshes parts, pendicles and pertinents whatsoever lying within the barony of Avendale, the regality of Hamilton and the sheriffdom of Lanark
I have adjusted the ending of the previous bit in light of this - "take" is the whole thing, so the bit of pasture will be called "the Tack".
Re relationships, I have often found that the best details about relationships are amongst the witnesses, where one is described as, for example "the third lawful son of ..." If it were practical to read the witnesses in ALL the sasines for the area, you might find your Cochrans witnessing other sasines and being helpfully designated there!