long story, and I've namechanged, sorry.
about 10 years ago, FIL decided to split his money between DH and BIL. he wantedto retire (family business - we own a farm) and the easiest way to do it was to give it to the two sons. anyway, BIL has always been a bit of a hothead and didn't want to settle down and help DH run the farm. so, they agreed (fil and dh and bil) that they would sell some of the farm property in order to give bil his share of "the money" and bil left town.
now, (I came on the scene after all this bit, about 8 years ago) fil didn't hear from bil again and he was distraught - he knew bil wasn't dead, but he felt like he was, or he could have been for all we knew.
Bil suddenly turned up about a month ago! he'd pissed all the money away, basically - he'd got involved in a business that went belly up, then drank a lot (he had had drink problems before all the mobey thing came about) and lost most of it. he came back almost broke. he'd even declared himself bankrupt.
FIL was over the moon when he came back! he's given him one of the farm properties, a car, thrown him a huge party, and I'm just convinced he's lapping it up.
bil swears he's changed and learned the error of his ways. I'm not so convinced and dh is furious. 
he had a huge row with fil about it- ranted about the fact that we've sweated over the last years running the farm, whicb we've saved from bad management and kept it afloat, then this reprobate just turns up out of the blue!
what do you reckon? aibu to think that he's going to try to take more from the farm and ruin us as well?