I am looking to buy my first rental property with my business partner.

No, the vast majority of business's, including service business, start-up's do NOT clear profit day, month, quarter, year 1. 

I can present a business plan with market data and construction timelines.

You can close under your LLC or any business entity name with a DSCR loan.

It's pointless→ I want to evaluate how the property is performing NOW→ Where it COULD BE performing→ And WHAT it will take to get there.This involves (at a minimum) checking comps, creating a 5 year proforma, verifying taxes & insurance, and making assumptions about the business plan.You can't determine if a deal is a pass/go simply from NOI / Cap Rate.The art of underwriting involves finding value where others miss.If you're passing on deals just from dividing the in-place NOI by a cap rate, send those over here!

I don't know how your business flows, but I knew a guy who had an excavation business.

We also operate a property management business and work with other investors to help oversee their projects and stabilize their rental properties. 

Very few episode don't include plugs for his brokerage business and his mortgage company. 

Hello, I am starting in the business looking to fix and flip.

Dont be surprised by high quotes... you don't always get what you pay for, but its a business they are going to attempt to sale you the kitchen sink.