Also, we keep our vac rental stocked with paper goods, soaps, detergents, coffee filters, and a few other small things that guests appreciate but it can add another $50-$100 per month in the summer season.  

Of course they are not likely to clean the filter or rinse out the coils to keep it running efficiently, whether it is your or their AC.

Because it is a filter!

For a busy business person like myself, finding, paying and talking to my CPA, an attorney and a financial advisor actually took me a significant amount of time when I had 60 employees to manage and when I have about 30 city inspectors breathing down my neck and about 5,000 safety concerns that have to be addressed every second of the day so a trench does not cave in and to make sure a vehicle doesn't kill one of our employees.My point is; the average person does not have the ability nor the time to do a significant amount of research and even if they did research the general partners can rig the books and even his current limited partners are not always aware of what is going to go down in the future.The syndicated deal was for two K-Mart shopping centers.

What part of sending "letters" is filtering motivated sellers from non-motivated sellers?

The Network --> Hard Money Lenders tab on BiggerPockets allows you to filter by state.2.

So we have attempted to do inspections when we do filter changes 3 times a year.

Another thing I found was hvac filters were dirty and needed to be replaced.

It outlines that anything more than changing a light bulb or the provided AC filters she is to call and not mitigate any damage on her own until we speak.

(Actually, they work OK if the filter is cleaned regularly, which no one seems to do)If you are keeping it, I'd recomended a vented hood.