It isn't registered with USPS; can't be found on any online service like Google Maps or Amazon, and doesn't even have a mailbox to receive mail. 

@Nickolas WolfeCost segregation applies to when the property was first placed in service which is 2021.

General contractors typically charge a percentage for their service.

I've helped to convince a couple tenants to get signed up for these services which helped them be able to afford a bit more in rent.   

@Mark S.I would tell him that after three plumbers and three service calls that there is nothing there.

Here's the breakdown of costs and services I'm considering:ZenBusiness Options:Starter Package: $0 plus state fees.

I own a duplex where occupy one of the units and rent out the other, where my unit has a typical street address and the other unit has a "1/2" street address.

I'm a fan of quads because, typically, the cash flow is a bit higher. 

@Nate Sanow we typically put 25% down for our multis here in Oakland and are averaging $1000/door/month in cash flow after PITI, and around $500/door/month after accounting for everything else (maintenance, cap-ex, mgmt)

The appraisal for your $300,000 house came in at $282k, which is a typical problem.