These might sound like standard Mortgage Broker qualities, but I can assure you they are not. 

Most quality GC's are already busy and none will want to go room by room. 

When you rent below market, you get tenants of below-market quality.

Look at social media and mycase.com     There are many steps to a quality and effective screening process. 

As a GC by trade, they also provide you with one pivotal point of liability coverage as well as being contracturally obligated to meet your deadlines, quality standards, plan implementation, and inspections with the municipality.  

Quality work and fair rates.

My properties are in Brentwood, used to be able to get many applicants, but now it's just a trickle in the height of summer and quality of tenants is less than desirable and with much longer DOM. 

In this case the quality of the investment is not relevant.  

@Sean McKee we have just under 100 units in Berwyn. the answer to your question will depend mostly on the quality of the unit.

And with the interest rates we're seeing these days, It's doubtful that you can get a superior enough return on a purchase with a refinance to offset the decreased performance on your old property caused by the refinance.But what is attractive about 1 and 2 is that there is no debt.