The drain pipes were fitted into the main clay pipe and concrete was poured around the edge of it to seal it.

Do you know if it is concrete in between?

Make concrete plans on how to achieve those goals breaking them down into as many steps as necessary.

A deck more so than a patio in my opinion, but it also depends what kind of patio if it's just poured concrete if it's made with pavers, etc. 

A paper trail allowing them to see what work was done while also seeing who did the work will deliver more polished products and accountability from all parties.

We ended up laying down Kilz on the concrete before laying the flooring.

During my first rehab, I had to replace a section of the concrete driveway.

Other places a landlord who enforces a late fee for a few days delay will get concrete down the toilet and tenants who leave chaos behind in revenge.

The electrician , plumber , HVAC , concrete ,  contractors ALL mark up their materials .

Only in the last 3-4 months has he said he's seen some light at the end of the tunnel and they're starting to see minor insurance premium relief on properties, but it's for the best of the best assets (New construction, concrete block, 250+ units, etc).