It seemed to always favor the investor way to much just my opinion . 

The seller, who happened to be a developer, agreed to leave some funds as equity in the deal, providing us with favorable terms.

You can also usually get a conventional loan with more favorable terms if you are living in the unit for at least a year. 

Is it a good idea to favor one or the other, or incorporate a little bit of both into a single mailer?

After doing the math, it looks like claiming section 168k now if only allowed against federal might be more favorable than reclassification.

Efficient negotiations secured the property for $200,000 on favorable terms.

Seller financing favorable to Buyer is always appreciated by Buyer, but not so much for Seller, depending on the situation.

Regardless of the bonus depreciation phase out, it continues to be a favorable strategy that creates significant tax savings.ReclassificationDuring a cost segregation study, the real property is reclassified into new categories of personal property based on its useful life.

Efficient negotiations secured the property for $236,000 on favorable terms.

You don't need a reason, though it sounds like you have plenty.Do yourself a favor: buy "Every Landlord's Legal Guide" by NOLO.