A class properties have walk in closets and master baths.

Two walls, a part of a closet or window. 

In October it leaked into bedroom, closets and downstairs neighbors bathroom.

@Meryl McElwainBallpark cost to wall off a small dining room and turn it into a bedroom w/ closet?

I believe that I have pretty solid systems to make things efficient for my cleaners: - well-organized supply closets with printed shelf labels and cubbies. - detailed bilingual checklists with staging photos. - 3 sets of all linens, enough for 3 turnovers to be completed without needing to wash. - laundry handled separately by a wash-and-fold delivery service. 

I also had the idea for a dedicated cleaning closet.  

Furnished with a mix of new linens/beds/some kitchen stuff, some rather elegant pieces that were lurking in family members' closets, furniture from Craig's list/estate sale and even found on the curb, for a total of a few thousand dollars.

Then, it still always involves 2-3 trips to the plumbing supply store or Lowes.Table saw, chop saw, jig saw, roto-zip, rotary saw, 3 sizes of hack saw, sawzall, router, under door saw, bow saw, chain saw.....Battery drill, battery skill saw, battery flashlight.Many sets of drill bits and screwdriver bits, flat, phillips, star, hex, several pry bars, pliers, pipe wrenches, screwdrivers, wood chisels.......Tape, carpenter's pencils, utility knives, several sizes of tape measure, T-squares, and levels.....Buckets of plumbing tools, spare lengths of PEX, PEX fittings, PEX tool, PEX cutter, teflon tape, plumbers dope, under sink wrench......Electric plugs, GFI plugs, wall switches, wire nuts, wire strippers, and a new light bulb for every fixture in the house ebcause every one will be burned out......Compressor, brad gun, nail gun, finish nailer, roofing nailer, hardwood flooring nailer, assortment of nails, brads, screws, staples and the power stapler to go with them (both electric and pnuematic).Drop lights, halogen work lights, salamander heater, furnature dolly, saw horses, portable propane tourchSanders, 3 sizes, sand paper, power planer.....And there's more.

i can post a picture of the studs without drywall if needed. the corner is in a closet.

What do you recommend for cats that urine in closet and get behind the the trim/drywall?