Alternatively, rent out the property.

@Michael GiaquintoPortfolio loans are an alternative if you want one. 

I wasn't super impressed by that, and am now looking for a more professional alternative.

@Gwen Fyfe that is wonderful information and i will certainly look into that program as an alternative option for my next rental thanks for taking the time to share this.

Normally the coverage is not a good under that alternative.

The alternative is to use "friends and family" money which can be much cheaper but don´t mess it up or Thanksgiving will be painful for years!

The other alternative is at maturity you extend but then have to pay an extension fee of 1% - 3%. 

I’m wondering how much I can expect to pay when this is all over and whether there are any alternative options here.

The longer you are invested the Lower the IRR. 10 years is a really long time for this type of investment.If you look at alternative investments I think you can find plenty (like stock market) that would beat this and you have liquidity.For example, warren buffet (or most likely his employees), ingested 250M dollars a few weeks ago in SNowflakes IPO.

It's a good way to offer sellers an alternative if their properties don't fit the buy box criteria.