I know a lot of professional managers around the country that are really "investment managers" because they work hard to protect your investment and income stream, but they also work hard to improve it!

If he was going to flip, he may not value the residual income stream and might not be interested in a seller financed deal.Third option to sweeten the pot would be make the term shorter, say 35K purchase price, 7-10% interest 30 year amortized but ballooned at 24 months.  

I come from the paper side of the business and if you are trying to turn $50K in to some decent cash flow streams, then I am confident I can offer you some alternate options that will net you the same results.

I really like the property as far as it natural characteris tics such as a seasonal stream, south facing slope, pond possibilities

The $8452 you got this year could be invested and -- by definition -- is worth more than the $8452 you'll get in year ten.The true value of that income stream will depend on the initial cash investment, the specific stream of income you get from the investment and the discount rate (essentially your cost of money or opportunity cost).To put things in more concrete terms, check out this post I wrote a couple months ago about calculating the net present value (NPV) of a seller finance deal:http://www.biggerpockets.com/forums/48/topics/1649...Probably worth checking this out as well, since it relates (Internal Rate of Return (IRR) is the flip side of the NPV coin):http://www.biggerpockets.com/renewsblog/2010/09/02...

Many times it is in the foreclosed owner's interest to pay market rent to the new owner than it is to abandon the income stream.  

We can sent aside a large sum of savings from the added income stream if we keep our current standard of living.  

Keep in mind that CMBS loans are typically non-recourse so they are less concerned with the borrower and more with the asset and its income stream. 

Anything we have found that is not worn out is priced 80K - 100K/unit; producing a revenue stream of 7 - 9K/unit; with 4.5 - 6K/unit operating costs.  

Addendums are great for mid-stream contract changes, but hey, to each their own.