Jenni Rivera -- Kids Moving On Time to Cash In On Moms Estate

Jenni Rivera's family is ready to unload one of her prized possessions -- the massive estate she designed 3 years before her death ... and they're hoping to get $4.5 mil for it.

Jenni’s dream home sits on 4 acres of hilltop land overlooking Encino, CA. The estate has 7 bedrooms and 10 baths including marble floors and a double wrought iron staircase.

The legendary Mexican singer originally bought the property in 2009 for $3.3 mil, but sunk another $500k worth of personal upgrades into the place. Right now Jenni’s kids are living there, but we're told they're ready to bolt if the right buyer comes along.

Check out the gallery -- if you're into private hiking trails, and pools with a waterfalls ... this is your kinda pad. Of course, you also need a few mil in the bank.