Questions like this often get better and more actionable responses.Also, keep in mind that while this site is an incredible resource, opinions can sometimes come across as blunt.

This would also allow you to get better pricing from lenders.

In my case I sold off appreciated properties in a location I deemed as having limited future upside, and used the proceeds to eliminate all debt on the better located prime properties I wanted to keep long term.

I know cheaper is not always better. 

Why would seller finance be any better, you are overpaying for the home.

But keep in mind if your using money you cant afford to get back then buying action property might not be appropriate for your current endeavors and its better to just buy open market were you can do proper due diligence and know you have a build-able site.

If you use labels, it cuts down on the effectiveness a little but clear labels works better. 

Did they find a better place, a cheaper place, a better and cheaper place?

And if it's a high amount, would you be better off just using that as a downpayment and get a standard new investment loan?

for me I would have been better off donating that 75k to habitat for humans would have got more out of it than a tax write off !!