This couldn't be more accurate.

Are you sure your monthly asking price is accurate for the current time, accurate for a duplex in a duplex neighborhood, and accurate for this neighborhood.

How accurate is the data provided by AirDND in terms of price and occupancy or do you use a different website to analyze deals?

I don’t know your sources of information but they are generally mot accurate.

For newly constructed, purchased or renovated properties and also retroactive generally over the last 10 years, building components are properly classified into individual units of property and accurate recovery periods for computing depreciation deductions.

They understand the areas the best, and appraisals usually are more accurate.

With such a huge variation in price we are wanting to find out the most accurate way to determine the true price.  

If you jump into something before doing this - you're highly likely to get taken advantage of, or at best waste your time & money.Can't help with a coach:(Do recommend investing close to home if you can and then screen the heck out of PMCs with your expectations & goals to hire a good one.Recommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

Yardi's Advanced Budgeting and Forecasting module is wonderful and tends to be more accurate because it builds its forecast on all of your historical data. 

@Richard Benjamin WilhiteRecommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.