I'd be interested to know how people are finding properties that would include seller-financing, as that seems like a win-win option (for the right seller). 

You are probably ahead of most by simply taking action.

From a purely financial perspective, the optimal solution would be to leave the mortgage in place and simply use the windfall for investment purposes.

In my experience you try and fight the man, they push back, may take some time, but they always win.  

I wrote before about a property management company in the area that I simply couldn't get ahold of.

For those that may not know, the fenestration business is simply know as the window/door market.

I bought a duplex with FHA about 6 months ago, I put $10k and my sweaty labor into it in renovations.The place is simply way to small for me, It is 1bd 1 bath on my side and 2bd 1 bath on the other(I rented out that side)I found a much bigger duplex I really would love to purchase, so I had my realtor look at my current duplex after the RENO to see if she thought I could get an appraisal and refinance over to conventional.

Total win!

I guess either situation could be seen as a win-win. 

The investor I work for no longer wants to become an employing broker so I can hang it with him due to fees, required continuing education and the fact we simply can operate without.