Most REI marketing agencies range from $1500/mo-$5k/mo in fees alone.

Duplexes range 350K+ in the area so you'd have a decent chunk of change to reinvest.

I’d say invest in higher end homes and mid range seems to be saturated, at least where I am it is. 

Purchase price: $171,000 Cash invested: $14,600 4 unit property, each unit is a 1 bed/1bath ranging from 560-850sqft.

Current market estimates, and ones that I have received myself, have the installation of a new ATS ranging from $45,000 (on the low end with perfect property conditions) to $80,000 or more.

We are in the $1200 range on average.      

I would be running numbers in the 70%-75% LTV range.

Lately I have been studying the multifamily property market and I continue to see cap rates between the ranges of 5-8% within 6-8 units around where I'm looking to target my investment.  

I did a quick review of Furnished Finer in Midvale, UT and it looks like your price estimate is about in line with the market but there is of course a bit of range depending on exact location/level of furnishing, amenities, etc.

I'd be aggressive on offers in cash and potentially hold a small mortgage on a high quality asset in the $450-$500K range.