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. 

It shook out to about 2.3% unbelievable deal for all of its quirks.  

It's possible someone can loan you the loan but unless you have the intent and ability to use those funds to purchase the property, your proof may be considered fraudulent and you can be sued for damages if the seller loses an alternative deal because he/she relied on your proof to accept your offer. 

@ThomasBurnett to provide further context, my alternate option to breaking my lease would be to invest in Indianapolis.

@Christian (Whitehead) Scott If you don't find the tax delinquents at at the county assessor, you might consider working with a list broker to find a good alternative list.