Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input:   

Ok long story short, in February 2017 the father of my wife asks me to support them temporally because he had to move to the city (he has just got a government contract, and as he didn't know how long is was going to be. OK I agree to not be the asshole. Time past and they only pay for utilities (almost all of them, but still is less than 20% of the rental market value of the house), now we must move for job reasons. So, the thing is, since we left the house, they ask to stay there but we didn't set the terms because mainly of the rush of moving and secondly because she don't let me talk directly to them (it has been an issue forever). Well bottom line, has been three and a half months since we leave and yesterday, she came over to me saying that "she has just collected the rent from her parents". “OK, let me see”, and it was only one month, that when I said "WTF, they have year and a half sharing the hose with us plus three months having it for themselves and they only pay one month at half the market value?" she was like "oh, youtheasshole, my poor parents (they aren’t, he had just give away a car to his sister and always brag about how much he wages and how much he has in the bank), how I can collect backwards? that's crazy".

So, the first question is AITA for asking for the money (we're pretty thigh right now, and we pay a lot of rent)?

After that she said, I don't want trouble (nor talk with my parents), so here's this check covering your 2 months share that I didn't collect.

Second question, AITA for accepting that money?

A little bit of background about our finances is that we leverage all the expenses and each of us pays a proportional (in relation to the individual income) of the expenses, and she never forgive me any expense or payment (for example if any of us makes 2x the other income it must pay 66% of the expenses).

collecting rent to in laws living in my house