Me and my wife currently have a sonyma fha loan.I have no other dti except for my mortgage payment.

My math is showing I'll owe $942 a month to cover the gap between the two rental payments.

The only figure I can’t determine is the monthly mortgage because interests fluctuate and the down payment.

and were done by 100.00 incredments and by year time frames so if you wanted to know the payment on a 45k loan at 10% for 7 years you found the 10%page and then 40k ( went up to about 200k)  then the 5k the payment was spelled out and you added the two together to get the monthly payment..

This is going to bring my mortgage payments to around $2.3k per month. 

What is your price range/down payment amount?

Quote from @Jokari Trueheart: HI, almost 11 months ago I purchased 3 duplexes and I borrowed the funds from my personal residence which I took out a equity agreement for the down payment on the investment property, great idea at the time because I have 10 years to pay it off and theres no payment requirement, but , I learned more about the consequence that it takes a large chunk of my equity the longer I take to pay it back, so my goal was to refi cash out the investment property to pay it back but I don't think theres enough equity yet to pull the full $106k needed, I only borrowed $88k but with the equity percentage for one year i'm paying about $18k in equity on top of the amount I borrowed if I pay it off in year one, so I need this paid off ASAP before it increases more.

But NOT payments due tomorrow.

Do you need to refinance quickly to avoid a balloon payment or other financial pressure?

This may sound harsh, but I would actually put this on the tenant to get his rent payment back.