Conventional Loan - We settled at $155K and closed at the end of August with a 25% down payment and a 3.875% rate on our mortgage.

Once you have known costs, you can go back to the seller and explain that anyone that buys that home will end up doing the same that you will be required to do as their conventional or govie lenders will stop the loan based on the appraiser identifying these as unpermitted additions.

If it's 2-4 you can use a conventional lender.

I know that with conventional the downpayment is higher for multis maybe the lender got confused with conventional and FHA. 

We are looking for a conventional loan for a $1.2 million condo we put under contract in MN.

You may not be able to get a conventional loan until you've satisfied the 1 year requirement for the first one if you did it as an owner occupied loan.

I would like to take more funds for a downpayment on the single-family rental I inhabit - on owner carry or then FHA/Conventional if not.

Question, How would you do a conventional finance on a 4unit duplex that's technically a condo? 

Anything with 5 digits in the address is in the city and 3 or 4 digits is typically county.

If you want double-digit cap rates and COC returns that are landlord-friendly, I have found that KC and OH have been great at delivering those types of returns.