Longview is 40 minutes north of Portland, OR ,and values here are rising quickly due to Portland's crazy real estate bubble....Here are the logistics:Original purchase price: $135,000Outstanding balance: $131,000Estimated current value: $200,000Mortgage payment: $950Current Estimated income from renting both units: $1700Property management cut: 8%If I sell the unit, I would try to reinvest the earnings into another duplex property in Dallas, TXI'm looking for some advice....

You simply add that expense to you analysis.

The prices simply went too high, while rents didn't follow proportionally (IMO, because a lot of the house were bought by investors, thus the market rental saturation is quite high...and guess what, all those landlords are competing with each other and have to keep the rents lower to get them rented). 

If you are able to find a property manager who simply looking for their monthly rent, and you have done your homework for potential income for AirBnBs in that location (as well as being familiar with the ordinances in your area), you can negotiate a clause to be able to list on STR platforms. 

From what I heard from land-lords it's fairly effective at it's job and easy to use.All of this to cut my teeth on basic property management and having a close eye on the surrounding areas.

The price per unit simply allows you to compare it to other nearby sold properties. 

You should establish policies that discourage fraudulent claims, of which there are many, and ensure you are only accepting truly disabled people and not someone abusing the law to sneak in their pet.If you have an established, written policy, you can simply respond by emailing them a copy.

Your income is so low it appears as though you are simply avoiding the responsibilities of working for a living. 

With the above clause, you can simply refer to the lease instead of laughing directly at them, which might be considered in more refined circles, to be rude.Have a nice day

Or do I simply fix up the one unit, get more cash, and pay for the updates on the next tenant turnover in a year plus.