That seems like a pretty high payment for that price of home. Take everything into account and make sure you look at your potential losses by dumping it now vs holding it for a few years.
If you pull some more equity out of your primary residence and can pay it down to an 80% LTV (if you have any left) and the rate should drop dramatically.
With an 80% LTV you could get an interest rate around 6% and an I/O payment of about $760 plus taxes and insurance. I know it sounds crazy to throw more money at it, but in most cases it is your safest choice. High LTV loans have very high interest rates and you are probably paying over 1% a year in mortgage insurance.
If you rent it for a loss, you may be able to take those loses on your taxes and depending on your tax bracket get a good chunk of that back. I get around 25% of my negative rents back on my tax returns.
If you put the extra money into it your payment would drop to 760, but your going to have to pay on that 40,000 on your primary residence. So that's probably going to cost around $220 a month.
Investment Payment $760
Investment Homeowners Insurance $100
Investment Taxes $100 (you will probably not get assessed your first year and just pay on the lot)
Primary Residence Increase $220
Total Cost would be around $1,180 and you would have to pay a property manager around $100 a month.
Looks like you could almost break even on it with the right mortgage and taking the cash out of your primary residence.
Things will rebound eventually, so if you can slow the bleeding down to a few hundred a month you can hopefully stick it out.
If you have been doing pre-construction since 2005 I am hoping you made some money somewhere to ease the pain.
I did this on a few properties in Lakeland, Florida. If you want more info you can shoot me a PM.