Neighborhood deterioration leading to long term rental rates falling, as well as occupancy and quality of tenant.

When it was pointed out to the seller during the walkthrough yesterday, he answered that he will "tap it back in", as if he has done it before.In the seller's disclosure, he marked "No" on any history of walls/foundation shifting, movement, deterioration, past or present. 

If the foam is deteriorated you could cut away the expanding foam as best you can and get another can of it and refill the gap, then when it's dry cut away excess.

@Taylor SmithBe on the lookout for powder post beetles, knob and tube wiring, lead based paint, and deteriorating fieldstone foundations. 

Or you would find yourself managing a deteriorating asset.We found that judiciously sprinking in duplexs in various configurations with SFs helped up keep the quality of the subdivision up as a whole.2.

It also appears you have some wiring with deteriorated insulation. 

As someone who has worked with rentals for 50 years, I highly agree with the adjectives used by Christopher Smith regarding the negative economic ramifications of rent control and increasing property taxes on California's deteriorating economy!

We have a SFH that has been having a number of minor plumbing problems, and now we have uncovered that one of the major drain lines (cast iron) has deteriorated and will need to be repaired.

This will cause faster deterioration of water lines, water heater, etc.

As in why cant i just claim 70k in depreciation in the first year since that is exactly what it has depreciated by rather than the 3.1% that we normally assume things will deteriorate at?