They had to install system that cost about $80000, it is 26 space park, which consisted of 4 big media filters that alternate use and bring levels to zero and even have their own little drain field for the backwash water.

Sounds like she wants more of a Hoboken/Jersey City/Manhattan kind of location, and especially if you need livable during renovation for your sister and a roommate...it'll really unlikely be under $200,000 even now, and unfortunately, I'd be shocked if you found something 3+ bedrooms that met all of your requirements and that you could fix up and be all in for under $200,000.

I have several of them installed around the country. 

Looking for anyone in Boston area who has installed Solar on a rental property roof.  

Incidentally - in addition to painting - I started asking about installing foundation vents on both houses.  

Quote from @Tom Malloy:That makes a lot of sense, luckily the bedrooms already have carpet and I'm only installing LVP in the common areas.Much appreciated! 

We advertise in Craigslist.org under "gigs" for an installer.  

@Diran Deukmajian I would let her, cameras are not permanant,  Just make sure you approve the install locations and she returns it to the state it was in when she rented it after she leaves.

When the dog tore the carpet they contacted their insurance, I contacted my carpet installer.

Valves are cheap and easy to install.