The employee responsible was eventually let go, but the problem festered and eventually got worse.

Cannot allow problems to fester.  

She allowed the problem to fester for five years.

Don't let it fester or take it personally.  

Newbies need to look into "tortuous conduct" in law, it can arise out of things you can't imagine and fester into causing another financial harm, and if you were not dealing above board, having the ability to perform as implied, you can be had.

In addition because most tenants have a innate resentment of landlords, more accurately the resentment of paying someone else's mortgage, they most often see gifts as a landlord flaunting their wealth and spending the tenants own money on a gift for them.If you as a landlord can understand the thinking of most tenants you would see how this places a tenant in a awkward situation and can fester resentment.

Or think of an LLC like you’re your strange Uncle Fester.

But now, as she is denying access, my concern is that she may allow the damage to fester and become a much larger problem that she could then attempt to use against you later.

Thank you guys, trying to learn as much as i can and fester up the courage to make it happen "NOW" if you know what i mean. i got to get into the right frame of mind especially since its going to be tough to break in on the scene. once again thanks guys.

Best to have difficult or unpleasant conversations up front than to let things fester.