AIO? My 40 year old feminist sis had her 1st kid last year and I'm concerned because sis been pulling my 65 year old mother out of retirement, putting her on a 24 hour bus ride from Mexico to Texas, followed by a flight to Philadelphia, to be a live in nanny for few months at a time for $1,200 a wk

Sis does pay for the flight to and from Philly and mom stays there about 2 months working as a full time live in nanny and 2 months in Mexico, rinse and repeat. I wouldn't be as concerned but Mom expressed to me that she feels like she doesn't have a home any more. Was a big red flag to me. Sis pays her $1,200 a week. I googled and that seems below average, but I'm not a math guy? I'm really really concerned. AIO? For context sis is a DEI councilor to teachers in a school district in Philly and her husband is a professor at Rutkers University. I do know for a FACT her husband is a cheapskate from hell...