This is a pretty involved detailed question but they typically have a few metrics they lend on. 

What does a typical purchase price, rehab, ARV and net profit look like?

Investors typically market to absentee owners.  

A home that's a couple of years old should already have most of the new home kinks shaken out of it or starting to show up so inspect it well.A triplex can definitely be a money maker but unit size and parking may make a huge difference in rent.Remember the owner occupant requirement is typically only two years.Congratulations on a good start!

This is one of the typical frauds...most claim it as an "inspection" period.

Hey Brian typically lenders do not honor assignment fees but i have a new strategy that will guarentee you get paid your proceeds by a lender.

Another note for you on conventional financing for condos is that anything over 15 year fixed and 75% LTV will pick up an additional condo "hit" to the rate meaning your interest rate will likely be 1/8 to 1/4 higher in addition to the typical uptick you would see from an investor loan.My guess is that your broker either doesn't want to deal with verifying warrantability of condos or does not have experience with non-warrantable loan programs.

Typically this is the responder, someone who is in a tight spot and might overlook the impersonal and unprofessional nature of the YL.  

how do people typically get ARV and Repair Costs when wholesaling a deal?

Only expenses are lawn and typical maintenance.