@Polat CaglayanI've never seen a formula but here is a general rule of thumb for multifamily:The class of an apartment refers to the quality of the building, which can be determined by a number of factors, including age, location, and condition: Class A: These are the highest quality apartments, typically built within the last 15 years.

@Travis Boyd The quality of the neighborhood will affect the cap rate to be used.

These are high quality properties that require very little or no deferred maintenance for the Buyers.  

I currently work remotely as a Manufacturing and Quality Manager for an AI infrastructure company based out of the Bay Area. 

Class A properties are going to cost you more, have lower cash flow, yet be more attractive to a higher quality tenant base.

Compared to other services that might offer lower-quality leads or require higher upfront costs/paywalls, Prime Tracers also give you free lead credits on sign up so you can actually see the results before you commit to a purchase.

Those qualities can be the difference between closing a deal and walking away empty-handed.What about you?

Everything they do is quality.

Are their listings detailed with good-quality photos?

Here's a https://www.irs.gov/businesses/cost-segregation-audit-technique-guide-chapter-4-principal-elements-of-a-quality-cost-segregation-study-and-report to the IRS website noting specific items that are included in the cost segregation study report. hmm, that website is a 404 error.