My mother wants to retire...

[Aaron Lobo]

Hello everybody, this is my first post so if I am posting in the wrong section or I sound silly, feel free to let me know.

So my situation goes as follows, my mother would like to retire. Currently my parents purchased a house in 2001 that has a $250,000 mortgage in which $180,000 of it is paid off. The market value of this house is around $650,000-$750,000 for the type of house and area we live in. 

I proposed to my mother that she refinances the mortgage they have on this current house and put it into a few rental properties. Essentially, we would like to supplement an income (my mother's) which is approximately $24,000 after taxes. Would the BRRRR method here apply even if if the rehabilitation part is not included in our investments, simply because we are not savvy, and more importantly, we just want to supplement this income as soon as possible?

What would be a good way to address this situation? Any suggestions are welcome.

Thanks guys, looking forward to hear from you!