Roofs can be patched, depending on the severity, and work for another couple of years.

I need to break up an old patio, level, lay drainage, and resurface with some other masonry patch work.  

I share that story to encourage you to stick through this rough patch. 

The SOW was complete flooring replacement throughout, scrape popcorn ceilings, replace countertops, reconfigure the stairs, patch a hole in the 1/2 bath wall, replace all lighting fixtures, service the HVAC, paint, clean the back yard, haul off all items left by seller, replace a bathroom sink/countertop and general cleaning.

The SOW was complete flooring replacement throughout, scrape popcorn ceilings, replace countertops, reconfigure the stairs, patch a hole in the 1/2 bath wall, replace all lighting fixtures, service the HVAC, paint, clean the back yard, haul off all items left by seller, replace a bathroom sink/countertop and general cleaning.

As is can list for 80k (one next door exact same house, exact same color carpeting etc --they once were owned within the family together-- pending in 45 days for 80k un-updated). 15k in cosmetic rehab (paint, carpet, update appliances, flooring in kitchen, roof patch up from Iowa's Derecho quoted at 3k) realtor plans to list for 109k. 

He paid $500 to have some sand poured over few patches and flipped it for $10,000.

In addition, the tenants probably used rollers instead of the original spray making it look different.The tenant claims that since they used the original paint (many years old) they are not responsible for the paint differences.The Landlord claims that the property was given to the tenants with uniform colored paint on the walls and returning it with patches of different paint color/shade does not constitute ordinary wear and tear and has asked the tenant to correct the situation.

Here's a more detailed quoteMisc:*Cleanout Apartment*Pressure wash Porch and front of house*Fix broken stairwell window*Replace all door hardware and stops*Repair Back door*Repair/Paint Back Porch*Replace 2 window screens*Install towel bars and Toilet Holders*Repair Storm door*Repair Stairwell door latch*Clean Apartment after all work is completedPainting:*Repair all drywall patches and caulk all necessary seams*Paint all walls and Trim in apartment*Paint Basement Stairs*Paint/Seal Basement FloorElectrical:*Replace all Outlets and Switches*Replace Hallway Light Fixture*Add 1 Light Fixture to BedroomBathroom:*Caulk Tub and SurroundKitchen:*Replace Kitchen Cabinets with Wolf Brand Builders Grade Shaker*Replace Kitchen Floor with Coretex Clickboard Flooring*Replace countertops with 3/4" stock laminated countertops (Renter'sGrade)*Replace Stove and Refrigerator*Replace Kitchen plumbing and Install new drop in sink*Repair all Necessary Trim*Replace 1st Bedroom Floor to Eliminate Warping issuesLabor Hours 10,000.00TMaterials purchased specific to job 13,680.00TDumpster/ Disposal Service 500.00T

If I have you have a contractor that can help you patch up the water and the mold problem where you can save money then yes do that.