An agent can run an illustration for you and tell you how much you should borrow. 

Illustration.

The responses to this thread with example numbers illustrate exactly what many others have said about not using a number for one region/property class for another.

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23DSCR lenders generally let you vest either individually or as an LLC.

For illustration purposes, I'm going to use the $5/month number, but it works with either the math is just simpler with the primary residence numbers. 

Quick illustration below:$30mm purchase at 3% cap NOI = $900,000 (30,000,000 / .03)Value at a 4% cap = $22,500,000 (900,000 / .04)Loss of $7.5mm based on a one percent cap rate rise.My advice for multifamily investors is to look at other asset classes.

At the bare minimum, put a Sports Illustrated Swimsuit edition calendar in there. 

Not Adobe Illustrator or other readily available Vector software, etc.  

Originally posted by @Sid Franklin:Here are a couple of articles that illustrate my point. 

I only included a link about federal fair housing law to illustrate the point that not every rental in the country is subject to fair housing law.