doesn't make sense to treat the house then throw all the stuff away, and replacing the carpet and repainting the entire house2.

Thinking of changing landlord carpeting to some type of lvp before renting it out.

It seems to me that any addendum signed later after the initial lease may create a messy situation. 

All it takes is one non-payment or messy eviction to set you back months and even years in cash flow.

FlooringScope of Work:Replace carpet in bedrooms with engineered hardwoodRefinish existing hardwood floors in common areasInstall durable tile in wet areas (bathrooms, laundry room)Estimated Cost: $20,0004.

Years go by and eventually Grandpa gets tired of fixing porches, nailing gutters and steam cleaning carpets that 'have a couple more years in them. 

When it comes to real estate, here's a general list of eligible assets and their depreciable lifespans that you should know: Residential Rental Property = 27.5 yearsThis includes any building or structure where 80% or more of its gross rental income is from residential units.That means:- Apartment buildings- Single-family rental homes- Duplexes, triplexes, and quadplexes- Mobile homes (used for residential rental)- Any kind of residential lodging facility where the primary purpose is long-term rentalCommercial Property = 39 yearsThis includes non-residential properties like:-Office buildings-Retail stores and shopping centers-Warehouses-Industrial complexes-Hotels and motels that do not qualify as residential rental propertyLand Improvements = 15 yearsThese include sidewalks, roads, fencing, some landscaping, and parking lots that are separate from the building.Personal Property = 5 or 7 yearsPersonal property used in a rental activity usually has a 5 or 7-year life.This includes most furniture, appliances, carpeting and various machinery.Qualified Improvement Property (QIP) = 15 yearsGenerally, this includes any improvements made to the interior of a non-residential building after the building was placed in service, excluding elevators, enlargements, and the internal structural framework.Computers and Related Peripheral Equipment = 5 yearsVehicles = 5 yearsNote that the land itself is not depreciable.

Then again I always pulled out any carpets from my rentals which definitely helps.

You are correct there certainly are ways for things to be done badly or illegally, but these are BAD MESSY situations before a sub-to deal would even be considered.

Also, the whole SubTo model is a bit icky and can often get messy from what I've seen.