This is probably going to be long as I am trying to explain the situation as best I can from all angles.
A bit of history first. My mum died 7 years ago, she left my dad, me (I was 25), my twin sisters (they were 23) and 2 grandchildren (my children, DS5 and DD3). My mum was the person that kept us all together and on the right path, (in other words, she was the boss).
Anyway, my dad pretty much gave up after she died and has steadily deteriorated over the last few years. He has emphysema, slipped discs, sleep apnoea and is generally not in great shape. I have looked after his bill paying, bank accounts etc for the last couple of years. At his request, I will add.
Now fast forward to last year when my sis met her now fiancee. He had walked out of his marriage and met my sis at church. He was taken in by an older couple from the church, and lived there for a while before he started seeing my sis. He has not worked since I have known him. He has had a couple of jobs, but has worked 1 day then phoned in sick. In the 12 months I have known him, he has had Pleurisy, Kidney stones, various viruses, injured knee, several colds and the flu, amongst other illnesses.
This is my sister's first proper relationship, so as you can imagine, she is head over heels in love. The thing is, he leaves me, my other sis, and my dad with a very uneasy feeling. I don't trust him 100%, although we get on well enough.
My sis moved out for a while (6 months), because my dad didn't want her to have a boyfriend upstairs in her room past 12am, and he didn't want him to stay over.
After their 6 month renting period was up they then said they had nowhere to live and could they move in with my dad temporarily for three months, which took the month to Oct last year. When the chat about them finding somewhere to live came up at that time, they then informed us that they couldn't go anywhere as they didn't have a good enough income until her boyfriend found a job. He hasn't done anything towards finding a job at all, but continues to pretend to look, and feign illnesses. I have asked him several times about it, and he promises that he will do XYZ next week, which obviously doesn't happen.
I'm worried that they are taking advantage of my dad's good nature and fragile state. They use his bank card and she regularly asks him for money.
I have asked my dad not to give them the card many times as he moans they are taking him to the cleaners, but then gives them it again the following week.
Oh I also should mention that my sis took over £1100 from his account last January.
What on earth am I supposed to do to stop this crazy, scary situation? I mean, my dad is a grown-up and so are they, but this surely isn't right?
Am I interferring? I don't feel I am, but maybe I am?
I apologise for the length of the post, but this is driving me crazy and I really needed to try to get it all down.
Thank you if you got this far.