Yes, we have been changing things up over the past few months, and it's solely because of EVOLUTION, not REVOLUTION.

Its very thorough, but like most systems, works best for the middle of the range of PHA sizes and extremes in rental variation, as the system doesn't work well in places where there is very limited data (many rural PHAs), markets with rapidly rising/falling rental prices (SF for example), or places that have complex neighborhood divisions and wide range of rental cost within their jurisdiction (generally big cities). 

Nashville for example in no way checks off the public transportation box and the highway infrastructure is already showing stress from the rapid influx over the last couple of years.

As for multifamilies, we have the occasional great tri or quad but there are tons of duplexes on the market, many of which are in areas that are redeveloping quite rapidly.

“It’s undergoing rapid change, a renaissance.”There's a huge opportunity for investors to snatch up some of these multifamily and single family residences in these neighborhoods in and around the downtown area.  

Flood insurance premiums are rising rapidly for new purchases, in most cases you aren't allowed to be grandfathered in at the old rates.

Costs have also been escalating rapidly over the past 2 years.

Just bought 5 properties in North Augusta, and looking to expand rapidly. 

You can rapidly depreciate all the major items - roof, carpet, etc.. upfront Cost segs can be great for all types of properties, not just residential.You can rapidly depreciate some items, usually totaling between 15-30% of the tax basis, but of the two examples you used, one is wrong.

Amos struggled to keep up with the brand’s rapid growth.