A complete overhaul of the kitchen and bathrooms, including cabinets, countertops, LVP flooring, electrical and plumbing fixtures.

Within about 1 hour she complains there is dog poop on the kitchen floor and sends photos. 

You can get some estimates from contractors for what they charge for big ticket items like to renovate a bathroom, renovate a kitchen, replace the furnace, replace the roof, etc.All wholesale deals should have free and clear title and you should be able to see the sales agreement before submitting the earnest money deposit.

Maybe you can add clear rules on noise, guests, shared space usage, cleaning responsibilities, maintenance expectations, and specific guidelines for shared bathrooms/kitchen.7.

A complete overhaul of the kitchen and bathrooms, including cabinets, countertops, LVP flooring, electrical and plumbing fixtures.

Got this one for 30K, only needed floors and kitchen redone.

If heat goes out in the winter we drop off several units, so they can be placed in different parts of the house - including every room with water like kitchen and bathrooms.We also have dehumidifiers, carpet blowers, shop vacs, puddle-sucker pumps, extra hoses, extra sump pumps with battery pack, squeegees, and portable AC units ready to deploy. 

That hard work includes making the investments that the current owner hasn't made (nicer kitchens, new flooring, fresh coat of paint, etc.), removing tenants and marketing to new tenants.

Meaning you may be able to do some cosmetic or smaller renovations like bathrooms or kitchens in your duplex when the tenants turn over and those smaller investments can demand higher rents, so in the longterm you may have more cashflow from the duplex to help fund a future investment in another property while you wait for market conditions to change.

Number of units, kitchens, etc.If these things were disclosed it would seem that things should be OK.