Period.I don't know what your lease says or the landlord-tenant laws in your area but, if their understanding of a grace period as defined by the lease is incorrect, then correct them on that. 

We had a water leak on a pair of exterior french doors which turned out to have been leaking for months due to an incorrect installation. 

I might have understood it incorrectly.

Is this true or am I understanding it incorrectly?

Would it be incorrect to claim a quadplex remotely managed property as a second home if I were to leave one unit vacant and meet the 14 day residing minimum for the year?

If you could work as a realtor I'm sure you could hustle your way into Brokerage (but I've never done this so I may be incorrect).

There are no rules that I'm aware of regarding selecting tenants based on past payment history.Without seeing it in writing from an official source, we really shouldn't be posting incorrect information that someone may read later on and not verify for themselves. 

Was there a property disclosure form that was filled out incorrectly?

If you can do those 3 things, you will succeed in real estate investing.Sorry for the incorrect spelling lolAnymore places that i can go to find out tips? 

But I'm having trouble finding any STR markets that are giving me Cap rates over 3% so I figured I must be adding something up incorrectly.