If a listing agent is just passing through listings from their friends in the industry that doesn't seem very ethical or in the best interest of their seller.

Another example, by observation, can a CPA determine whether millwork qualifies for accelerated depreciation treatment?

Ask an honest ethical pro to analyze with you and share in it maybe.

These are professionals with additional training and a stricter code of ethics.

@Martinis Jackson, if you bought that property with the primary intent of reselling (flipping) then it does not qualify for 1031 treatment. 

We are considering a heat treatment. 

Im looking to sponge as much knowledge as possible, with one of my strongest assets is my work ethic.

Essentially they charge for the water that was lost, but not the corresponding sewage treatment cost since they didn’t treat the leaked water as sewage.

However, there might be some tax benefit in your situation to treat this as a partnership (LLC tax as a partnership ).For instance, this treatment could reduce a married couple's SE tax bill when one spouse has wage income above the Social Security tax ceiling ($128,700 for 2018).

Sorry to be wordy but just wanted to put my two cents in that I feel it is an ethical thing more than anything.