if there is residual contamination below the slab, it could pose a risk of vapor intrusion that could prevent you from renting the property for residential.

If its the same dated filter I installed at move out I'll charge the tenant for a service of the unit due to the added strain on the system they caused by not following our lease agreement.With your plumbing situation I would include a lease provision that states tenants are responsible for maintaining all plumbing, excluding root intrusion and the like.

It came out to around $125 / month cash flow, not GREAT, but for a first property it's a base hit and gets me in the game.HOWEVER, here are the main issues that came up from the inspection that really concern me:Horizontal cracks in the poured concrete basement foundation on the back and left side of the house with what looks like attempts to patch it with stucco in the pastKnob and Tube wiring throughout the entire house (concerned about getting insurance)Galvanized piping for majority of water supply lines (low water pressure throughout house)Leaking roof from chimney (need to install cricket) and fix upstairs unit wallsOne of the furnace flues is completely deteriorated and needs replaced, currently releasing some levels of carbon monoxide into basementOne of the water heaters is from 1992Some water intrusion damage in main electrical panel and one of the breaker panel is a Pushmatic styleThese are what I conclude as the big ticket items.

@Fred CannonMy husband has mentioned that as well, that’s a good idea, I am just concerned about being to intrusive..?

There were couple of questions that talk about disclosing significant defects  and water intrusion.

If you are having fluctuating voltages when things are turned on, there is some kind of series circuit intrusion.

@Sam Leon @Udayabagya HalimGood ideas to actually achieve the objective without being "intrusive".Have you ever found any totally unexpected surprises inside the properties from new tenants that looked good on paper after they have settled in for a couple of months?

As it turns out, the property has a water intrusion problem in the basement, which I was hoping to address with a French Drain system.

I fully understand how intrusive and hard that was for this bank..

You don't need to disclose the water intrusion that happened in the past if it was completely remediated.Now again, it could be state specific (based on the disclosure form) and it could be that this attorney had a different opinion than others would, but that's the guidance we got.The bigger issue in my mind for the OP is that the old agent DIDN'T disclose this information for several months and is now claiming that he added it to the MLS due to the requirement to disclose.