As for the recent investors,  he walked them right into it.

The verbiage could be something like: "purchase price to be $150,000 with a $50,000 rehab credit,"It is easier to have someone walk you through how to do this than to try it on your own for the first time.

Forget trying to walk them through a simple repair over the phone, to avoid sending a ServiceTech and saving an owner money.

They will be able to walk you through the different scenarios with real numbers. 

If you walk into a bathroom and see peeling paint on the ceiling, you know that room was not ventilated while showers were taken.Wire exhaust fans to the same switch as the light so that the fan has to be turned on.

(I will ask that, out of respect for our current tenants’ security and privacy, to wait until your viewing appointment before walking the property.)If everything above is agreeable to you, let me know your availability over the next few days and I'd be happy to take you through the apartment.

If you can maximize all 3, then you've also created a very wide lead funnel, which is less common in multifamily properties.Maximizing "pets" means you're removing carpet, allowing at least 2 pets including cats and larger dogs > 50 lbs, access to a fully fenced-in yard or walking distance to a dog park, leniency on breed restrictions (depends on insurance, your risk tolerance, due diligence with pets during inquiry phase), pet friendly furniture (e.g. faux leather couch, low pile rugs if at all), etc.

If they don't comply, I believe then the paperwork will be filed with the courts.1) they violated my lease agreement by re-keying the locks and refusing to let me do a walk-through (excuse was she has covid)2) since it's a month to month lease, I can also end the lease and state I will be moving back onto the property and taking it off the rental marketHopefully, these two conditions will hold up in court and will favor me.

Quote from @Aaron Fuller: Walk away.Rents could "likely" be raised to $8,000?

Just don’t feel like you have to walk into the arena blind.