51 Year old female looking for a Gentleman friend with serious intentions

Hello, my name is Betty, I'm a 51 year old female looking for a 50-60 year old Gentlemen friend with serious intentions in the future. I dont intend on having a high school relationship. I have three grown kids. I'm looking for a man who has grown kids as well, a job, car, non- smoker, drug and trouble free. Hope to hear from you soon!