Estimating things like cabinets and countertops, flooring, roofing, etc are really easy to determine the $/Sf, but the real killers are stuff like bringing underground or overhead utilities into the property, the type of foundation and how much excavation is required, and making sure your units have a very efficient layout for framing to minimize material waste and the degree of difficulty for the carpenters and other tradesmen.

.- The silent killers. 

So we offered a VA assumable loan in which I Assumed his mortgage while getting a killer interest rate of 3.25%!

My realtor has been doing a killer job finding stuff right on the MLS that will produce good returns. 

Last summer I was finding some killer deals on houses in New Castle but was really timid to even consider as the MLS had pages upon pages of them which really concerned me regarding potential to rent after purchase.

HomeUnion is good as well but the 3.5% commission is a killer on the expenses.

I say NO debt unless there is a killer opportunity. 

Opportunity cost of waiting is the real killer. 

In my experience, most investors are not landing "killer" deals right now but they know the market isn't going to slow down anytime soon, and when the interest rates cool down it will be even more competitive of a market.

To us, we rarely buy second-hand houses anymore unless it's absolutely at a killer location.