Subtract $9,800 for desired cash flow and you're left with $8,900 for max payment.

Personally, I don't like it, but that's just my taste. qkjones is right in that it's a eco-friendly product which makes it desirable for a good number of people but it's not as durable as other hardwood flooring products so there's a trade-off.

So, I would take the NOI and subtract your desired cash flow ($100 per unit per month) to determine the maximum payment I could make.

This is a 1938 house in a historic neighborhood in the east coast - very desirable area for a flip because properties sell quickly at good prices once renovated.

MIRR allows you to vary your cost of capital for your situation if that is desirable.

Gas is killing land prices out of town (usually desirable due to mountain views).

We both had the desire to start a real estate business and would discuss the pros and cons of different strategies.  

You might be able to reduce your repairs to the carpet and paint, put some tenants in place, and resell to an investor in a quick amount of time if in a desirable area.

In 13 years when I will desire the income I will be cashflowing extremely well which will again give me a lot of options which is most important for me.

I don't mean to sound demotivating, but I think it's important for you to understand that real estate investing is difficult, wholesaling requires a lot of work, and making money in this business when you have none requires a thorough education and more work than most people are willing to put in.If you have the motivation, desire and the work ethic, start reading!