The OGs of The Real Housewives of New York City top the charts when it comes to net worths and it looks like Sonja Morgan’s is set to skyrocket following the auction of her house. The reality star put her New York townhouse up for sale many years ago and it’s been on and off the market for over a decade. Now, it seems Real Housewives of New York City alum Sonja is officially letting the home go as she puts it up for auction. It’s been decades in the making. After Sonja listed the property, then decided to rent it out. The New York Post exclusively learned the Bravo star is finally set to kick …