If there's not much else "wrong" with the property (or if it's relatively new), you might choose to go ahead and pay a plumber to get it over with.Definitely use polybutylene pipes as a "negative" when negotiating the purchase price.With inflation, tradespeople retiring, and the growing population moving to the area, it might well be less expensive to have them switched out sooner rather than later. 

Every top producing agent has a TC in our market here and the Brokerages offer them as an add on for a fee as well. 

Experience is king I'm well aware but...

Hi Mohamed,I am an immigrant as well and am an investor in Baltimore, and has many connections, send me a dm, let me see if I can find the right person for you.

Then I begin to think multifamily homes and I am unsure of  how well they sell either.

My longer term planning is 100% move to Kona or Hilo.If you want to know good furniture store then I can refer as well.

What about a well and solar system?

In oregon we house hacked and have a SFH that we rent out and a duplex as well.

Some properties, especially those with Accessory Dwelling Units (ADUs), provide opportunity to break even or cashflow with lower down payments.Out of state (as well as Upstate NY) investing is appealing when taking this all into consideration.

We can do all the normal stuff but do a lot of dscr, portfolio, and can broker as well.