This can be tricky from a warranty perspective as if one is the plumber and you have a massive leak it will be very difficult to determine which sub caused the damageNot to see it can't be done, but it should be at a considerable discount

Once you get better at estimating costs, you will be able to estimate things such as: roof, kitchen, bathroom, flooring, painting rooms, doors, windows, etc. 

Really I like it because it’s been remodeled inside, new roof two years ago.

Despite a very good townhome, it was rented out with badly stained carpets, damaged kitchen vinyl flooring and appliances from the 70's..... the roof literally fell on our previous tenants and it was like pulling teeth to get him to pay a DECENT roof repair.I recognize he's pretty lucky to get it rented out at all now, let alone 15% above market value.

What happens if you have a roof that needs replacement or a tree that needs to be cut down?

I have purchased several deals where the house was just a shell and had to rehab everything from plumbing to electrical to roof , etc. it's a massive headache and extremely time consuming.

As a contractor I always prefer a full gut but it does eat away the rehab cost and takes longer but no stress about plumbing, leaks, electric, lead paint and etc in the future.The patch up would cost less, fast timing, but then you are gambling with what's behind the wall and hoping nothing happens in the future.I assume most house that are purchase for BRRRR purpose are in distress/bad condition and old on some occasion.What rehab number would you go for?

After the inspection it comes out that despite the structure being sound, HVAC electrical plumbing and roof are pretty old and may need attention soon.

Found a small leak in the celling.

Anastasia re-read this topic and others.Some TK providers say ( newly rehabbed )or as you say (rent-ready).If you have a property for 40k as it's total value and  it's needs a new roof for 4,000 that is 10% of the worth of the property.