Down the line you can start looking at DSCR loans for your properties, or even I/O (interest only) DSCR loans, however you'll need to prove to lenders that you not only know what you are doing, but that your method is also profitable.

It can also be used to track and pay mortgages, taxes, insurance, and other expenses.How to get it: The Empower app is available from the App Store for iOS devices or Google Play for Android devices.Cost: Free2.

Additionally, you have to be disciplined to spend less than you save and keep in mind that you're paying I/O on the principal balance v/s chunking down principal, albeit minimal in the initial years, which goes against the Dodd-Frank rule for qualified mortgages for homeowners

But a lower rate may qualify for a 30 year fixed rate versus with an I/O option. 

I can not fathom how you were not informed that this was a DSCR loan and you should absolutely inquire about the specifics such as whether your are IO or not and the pre payment penalty. 8.4% is high in todays rate environment, even for DSCR.  

In short, Freddie Mac & Fannie Mae offer 70-80% LTV, 1.20-1.25x DCR, 30-year amortization, 5-30 year term, partial-full term IO, non-recourse permanent financing for owners of multifamily apartment buildings throughout the United States.

Truth be told, most will refinance their 5/7/10 year IO loan before it ever reaches the adjustable rate period.

Community banks got hammered last year after the rate hikes and credit union terms blew them away.We got 25 yr am, 2 yr I/O 6.75% 80% LTCIt's always the right time to buy real estate, although some times may be more challenging, it isn't always the right time to sell.It's only the right time if you are committed!

I like to have lines of credit for optionality and many of these are IO  

Terms for the seller 2nd have generally been 5%, interest only, 5 years.I'm only considering properties under this scenario that cashflow well immediately, hence the i/o payments, in addition to having a strong value-add element.