If the sales price is $850k you will need significant down payment to carry the DSCR loan on $5300 current rents...check in with @Joseph Chiofalo  as DSCR loans 5+ units are typically a bit more difficult to place as well. 

Hey @Hector Lewis,I have a DSCR but it also starts at a $75k minimum loan amount. typically I advise folks that are coming a little less to do a fix & flip, then DSCR cash out at $75k.

My family also has benefited from really high appreciation in the last 10 years due to a lot of northern Europeans, specially Germans, British and Swedish people who have a higher incomes and net worths than locals, buying a lot of the real estate in the nice locations. 

They realize that licenses and possibility of severe criminal prosecution isn't worth the risk.

.* Ask that same real estate professional above, if it is worth doing the rehab, if you decide to sell?

I was presented with an off market deal in Hammond with the potential to rehab it and add another bedroom, so I am trying to size it up as well and see if its worth it.

Understand that real estate is typically not a get rich quick scheme… $300-500/month per door is probably considered pretty good for profit on a financed property… so if you wanted to net $5,000/month and do it at $500/door you are going to need 10 doors.  

Sounds like you're essentially renting to a roommate with a few more bells and whistles than room-shares typically receive. 

You want to make sure as a long-term hold it will produce 5%+ CoC return, and once you finish renovating & stabilizing the property, it will be worth at least 15% more than you bought it for.

For a little background, I have some experience overall...a couple of rentals, LP on a 24 unit currently, a bit of wholesaling, and a decent network of all typically pertinent players in the deal space, and I push my knowledge forward each day.