Is this a realistic goal?

[Shawn S.]

I'm not sure how to go about running numbers for this concept, and perhaps there is no great answer, but I thought I'd try. We are just about to close on our 2nd property. I began this journey in July. One of the goals we have is to add at least 2 properties a year over the next 10 years. At that time I will be 50. Then the plan would be to pay all the properties off in the following 10 years so my wife and I can retire at that point from our teaching careers and have our income more than replaced. I will be 60, she will be 55. Is this a realistic time frame? Our goal on our properties is to cash flow $200.00 per month per door, and so far we are right around that area.

Thanks