I had a duplex in Hilltop that was doing well for me and sold it 2 years later to do my first 1031 into a Hilliard duplex because it was part of my investment strategy (invest in C class with a 2-5 year exit strategy and 1031 into a better asset class).

We talking rough area or working class? 

Multifamily properties do require more management overall and typically appeal to a smaller, investor-focused buyer pool.At the end of the day, you can be successful in both asset classes and they go hand-in-hand.

That could be market knowledge, ability to rehab a property - something that can give you an edge over other experienced RE professionals in the market and asset class you are working in. 

For example:CapEx: $250-300 per unit per year for older properties, adjusted based on age and condition.Maintenance: $500-800 per unit per year, depending on property class and tenant turnover.Make-Ready Costs: $1,000-2,000 per unit for turnover, depending on the scope of work required.Resources and Tools: Utilize tools like BiggerPockets’ Pro Calculator or other underwriting spreadsheets that have built-in assumptions for these categories.

I am speaking from mentors/classes in general.

Buildings are old and mostly C class and newer and in B class are substantially higher in price and not much cash flow but appreciate more. 

I recently purchased a 1500 SF two-story rowhouse in New York with a building class designation of Two Family Dwellings - Brick (B1).

I spoke with our attorney and he says we can file a class action.

Hey @Eric Chappell  You've absolutely nailed it - "class tracking" or the equivalent somewhere else is usually a top dollar feature.