I used an interest rate of 6.7 for the calculations. 

My personal opinion is: once the renovation is done, property is rented and generally stabilized, I take out a fixed rate mortgage.  

I believe it was just a flat rate per property per month, and quite inexpensive.

You are just as likely to have the rates climb while you wait on this subpar company as you are to get a better deal.

I save money using my military discount at Lowes 

The recent interest rate hikes have taken a toll on this deal for me; however, because now my lender is telling me that because of the changes, I need to pay off more debts to make the deal work.

I have a great interest rate at 2.64%.

I'm basically looking for the following fields (or whatever I can get):- Median Sales Price- Median Rent- Vacancy Rate- 5 or 10-year Property Value Appreciation Rate- Any historical values for the above to compare against currentAny tips/bits of wisdom folks can share would be appreciated!

One last challenge is their estimate of property taxes - they are all VERY low:(Michigan has some interesting property taxes because there's a Taxable Value and a State Equalized Value, as well as Homestead and nonHomestead millage rates. 

What is the going rate for a 3 bedroom detached?