You have actually achieved something that most don't, a win-win possibility with a real investor with experience.

Population growth, job growth, income growth and a landlord friendly state (I think RTP wins here).

The property is still producing cash flow so that's still a win in my book.

It's a win-win learning experience for me that I can take to the next deal!

If it's 10k and the project is nearing completion you could use credit cards.

As you know got to be in it to win it. 

Commercial is a heavy lift in the application stage but once the deal is underwritten, you're done, no last minute surprises because you bought a new living room set on a new credit card or made a college tuition payment :)  Also, terms can be negotiated and very favorable (extend the years or reduce the down payment for a slightly higher rate and if the numbers still work...hooray!).

You will need to learn what price to offer and how to make it a win win for all parties. 

Hi All,I just purchased a 4plex in Jacksonville FL. and Im looking for a rent payment system that is good for a small amount of units that takes Credit Card.

With an appraisal contingency and a 45 day close you have a worse offer than a 10% down second home buyer that can close in 30 days.The best way is to call listing agents in your area -- ask them about deals that JUST closed and ask about what made that offer win.