When the realtor percentage rates first hit there was a couple posters on there acting a fool.

Rates are higher than they've been and it's harder to find cash flow.

I dont mean to be blunt here but these all feel like questions that your agent should be giving you guidance on since they know the details of the purchase, the comps, the interest rates, the projections for your investment etc. 

Most of my clients have rates in the 4-7% range, some with interest only.

I'm in the position to apply(depending on lender DTI requirement) for conventional financing through the builder at <6% interest rate in this current market.

Insurance quotes are coming in anywhere from 3500 to 4500 per Year and interest rates are sitting @%7.1. 

Ahhh.... because it's a reasonable question for reasons that are self-evident, i.e. we want to know success rate of program.

I won't comment on whether its 'worth' it or not, however one thing I've learned and will share with you since you are new, is to be careful of homes that have low rent rates because maintenance costs tend to be disproportionately big.It costs just as much to replace an HVAC for a house that rents for 2k/mo, as it does to replace an HVAC on an 800/mo house. 

Hello,I'm doing research into how the federal funds rate affects mortgage rates.

We would then rent the back unit for market rates and keep the tenant in the 1b/1ba unit.