Plumbing for kitchens and baths essentially costs the same whether it is a tiny house or big.

Cosmo allowed us to do the complete re-plumb ourselves on a flip because we were the owners on record. 

Based on our research and reading extensively into our contract, we're responsible for any odors/plumbing issues emanating from within the unit, but the unit itself is in perfect condition; it's only two years old and they haven't brought up a single issue in the couple months they've been there.

This is something I constantly have to do with plumbing and it puts a little more pressure on the service provider (usually after the fact when the tenant calls them to complain), but it holds the system in the property place -- let the expert determine who dunnit.

Between the two of us, we have done everything from floors, to custom cabinet builds, baseboards, drywall, electrical, minor plumbing, built a mantle.

Once construction starts, a city inspector visits the site when prompted after each required check points like foundation, rough in plumbing, electrical, drywall etc.

Most household plumbing will retain water and will need to be blown out to get the pipes empty.

Once we got the property we stripped it and installed new drywall, plumbing, electrical, etc.

Raising rents and updating the apartments with with new counter tops, ceiling fans, & plumbing fixtures Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

I hired out some of the plumbing and electrical.