Find something going on with the outside of her house that needs a MAN to fix. Hell, even just make up that something was wrong. It's raining a lot lately?.....leave her a little note that when you were taking out the trash you noticed her front gutter was filling up with gunk so took care of it for her quick. Hope you're having a great week!
Short, simple and sweet. Then action is on her. Scenarios:
1) no reply or ignores = she's not interested (just let it be)
2) she writes a reply note back = she wants to just be friends (just let it be)
3) she comes by in person to say thanks = she's curiously interested and comfortable approaching you. In this scenario, then just make that your quick first date...just be charming, make her laugh, be confident, make it clear you're single but just because you haven't met the right woman for you and your kids yet and overall just enjoying a full and exciting life (make her feel like she wants to be a part of that). No mention of wanting to go out on a date or anything like that. Just leave her with a good lasting impression of you and things will start to fall in place after that. It's all about making her feel comfortable and at ease around you right now. Once that hurdle is cleared, then just gradually up the flirting until things become obvious and then smooth sailing GB.