Inspirational every time.If you haven't already, I would recommend that you start talking to lenders (banks, mortgage brokers, credit unions, etc.)

This is my first real estate property, but it's older and the loan amount is small (less than $200k), so the banks and credit unions I shopped around at are asking for higher interest rates.

If the partnership is throwing off ECI, it may be beneficial for the NRAs to invest in the LLC through another LLC taxed as a C Corp.US tax treaties with the UK and Ireland would need to be examined.Creating disregarded SMLLCs for the NRAs might create issues with lost tax credits due to the disparity in treatment between countries. 

We purchased the building for 1.1 million, and we were able to negotiate a $30,000 credit.

Because  my credit it just average 640,  and my debt to income ratio is high.  

I'm currently working a 10-year plan for retirement, at which point I would like to relocate (to the Outer Banks, N.C.) and allow one of my sons to take over the mortgage payments on my residence (financed at 3% thanks to a loan mod from several years ago).Credit is okay but not great.

There are all things banks look at when lending aside from the objective (i.e. credit score, collateral, etc).

Does failure destroy your reputation and your credit?

A benefit of a USDA loan is that it has lower credit requirements, and it offers 100% financing, but there are income limits. and if you find a house in a USDA eligible area, you're going to seriously limit your market for rent and/or resale due to low population.

Miscellaneous other items (i.e. loose faucets, some outlets not working, sliding back door jammed, etc)The seller offered us a $5k credit, however we think it should be much higher (around 10K).