If it's an entity that provides a benefit for paying dividends over salary (such as an s-corp in some situations), your answer may be much different than if the entity makes no distinction between the two (a partnership or disregarded LLC, for example).

I find using schools has helped to remove any bias I may have had and gives very distinct criteria of what I'm honing in on.

There are 6 major neighborhoods in Lowell and each of them are distinctly different.

The valuation and market value of a multi family property differs from a single family and you want someone that understands the distinctions if you go that route.

PCB and Destin are two distinctly different areas, and I'm not sure which market you'd like to focus on. 

There are some distinct differences among the areas that could sway your decision.The northernmost section of the OBX runs from Nags Head to the Virginia border.

This distinction may affect how you report these expenses on your tax return.

It is distinctly possible that he could be an employee instead.

While there is no statutory holding period required to qualify for 1031 treatment there is a distinction between buying property as inventory with the intent to resell it (this does not qualify) and buying property with the intent to hold for productive use (this does qualify).  

IMO that's the key distinction, the big dilemma and the first question you should answer.