It sucks to admit that there wasn't tight oversite on the deal to ferret this out b4 the sale happened and its subsequent consequences and it sucks for your client that they have made, for at least the time being, an investment that is not going to be in the black in the immediate future. 

Knowing the average bP buy and hold investor this type of information would be for advanced investors that deal in the back end of real estate not the front end like most who just want to buy a house for under market rehab refi rent or flip. 

Would this just be a matter or working the plumbing out or do I need a specific type of toilet?

I'm a pretty handy guy but this would be outside of my realm, but my experience helps me understand how much this type of improvement should cost.Improvements: remodel kitchen and bathroom, paint interior, fix exterior scafolding.How should I go about finding a contractor?

I've never had to use hard money before, so I am not sure what type of conditions are reasonable.

. - Property type (single-family homes, duplexes, or small multifamily)- Min/max square footage or number of bedrooms and bathrooms- Desired cash flow or ROI metrics to ensure profitability- Property Condition (turnkey, light cosmetic fixes, or heavy rehab)- Neighborhood type (A/B-class areas for appreciation vs.

What type of property and what type of financing are you getting?

Then connect with some hard money lenders (you can find some here on BP as well as some who are typing this right now) and connect with them to understand their product type, what they like to lend on and requirements.Hard money broker is all numbers game of making relationships and helping those that are looking for financing, it starts out slow but if you get with a few good borrowers and lenders it can be pretty decent money to be made.As an example we paid six figures last year to HM brokers. 

Figuring out the true cost will heavily depend on the type of dig down, depth, and total square footage. 

Reach out to a loan broker with your exact info and the exact or at least type of property you want to buy and they should have options and opinions.