Your answer is actually NOT addressing what that poster needs advice on. You are only scolding.
They want to get everything repaired. The tenant is slowing the progress down by only allowing work to be done when she wants. The poster wants advice on how she should approach the tenant so they both get what they want sooner rather than much much later.
You don't get patted on the back for being a slumlord! The tenant has been there for a long time and repairs are still going on! She has a new born and has a right to not be bothered with constant repairs because the landlord let the property fall into disrepair.