Advice on rental analysis

[Michael Balaska]

I am just starting to get into investing. My background is medical, so I am learning everything I can to get started. I have been reading and watching the videos on the website.  I have been looking at properties that I would like to buy and rent and then running the analysis. My question is... what specific part of the analysis should I be focusing on to determine if it’s a good deal. I have been focusing on cash flow and it seems the majority have been coming out around -$200 which would tell me that is not a good deal. This is with a 15 year fix mortgage. If I change it to 30 year and changes to a positive cash flow but I would think a 30 year would be to long for investing. Any advice would be appreciated. I apologize for my ignorance.