An investor focused agent should also be able to help you determine what the future performance of a property looks like by producing you a nice proforma with budgets and projections.  

She is old-fashioned (using paper and pencil), but she is not super expensive and works to produce the plans quickly.She is:http://dragonarchconsulting.com/

It'll be a bit riskier than buying something already renovated, but if you have the right team and numbers in place you could pick up some more equity on day 1, have less money out of pocket, and have something that produces some cash flow. 

I sometimes use Loopnet.com for quick examples of multifamily properties in different cities and the cap rate they produce, including the calculation itself.  

There could be better options where you can still keep your monthly a bit lower with a higher income producing separate unit.Hope this helps!

You'll need to produce evidence that the unit was left in a condition that didn't require cleaning.

I'm only building rental cabins which is a higher price point due to their ability to produce income. 

Vacation rentals in these mass-produced STR "neighborhoods" are really just a commodity, similar to a hotel room.

As far as a reasonable fee, I'd say it has to do with the value brought, and product level produced.

Once you pick one give it a serious dedicated effort, but if it's producing no fruit after several months you can always pivot and shift.