If you have owned them close to 2 years and claimed them on tax returns then your rental incomes will be based off of your tax returns, not the above mentioned calculation.As far as the DTI limits, there are compensating factors that allow you to have an AUS approval with DTI ratios above 45%, cash reserves in your bank account, more than one wage earner on the loan, larger down payment, etc.Most people stay below the DTI limits because the property they are acquiring will cashflow enough to cover the cost of the new debt (at gross rent - PITIA x .75).

@Kris Lippi listing with a flat fee service agents, investors save only a listing side of commission, or you don't offer buyer agent compensation either?

I am trying to use the fact that I just bought the house with no prior knowledge of this issue for either some leniency with the city or get some form of compensation from the seller..

Of course, after lawyer contacted him, same said person now believes he should be compensated for his 'time' and 'advice' and the buyers are giving him a small fee ($500).  

The team I had years ago is way past this so would love feedback on this topic for best training, practices and compensation.

@William Knights You mentioned off-market home buyer - I assume you are asking about using a broker for resale of the property.For the best market exposure, your listing should include an offer of compensation (aka co-op commission) that is competitive with what others are offering in your market, so buyer's agents have incentive to show it and sell it. 

I am 57 years old and have enough money in a deferred compensation plan to pay my way out of debt even if I take the 10% penalty for drawing it out before I turn 59 ½.I am ready to start investing in real estate and leave the Rat Race!

Gathering favorable terms will allow you to offer a higher price because your hedging your risk with structure, but you don't want to over compensate.

So unlike on the residential side where the buyers agent is compensated from a commission split with the selling broker, a buyers broker gets paid by the buyer in a multifamily transaction? 

Many investors are okay paying a little more than market based on the in-place NOI if there is a big value add but the seller should not be compensated for all of your work in raising rents and re-positioning the property.