The lease is a standard lease and doesn’t mention anything about how notices have to be delivered. 

That's recipe for disaster / bankruptcy.In those markets, you may find something, but it'll likely entail a significant rehab to bring it up to Airbnb rental standards.

I have been told $500 is a standard fee

The current cap rate volatility in ALL commercial asset class are exceeding one standard deviation.

The interest rates are competitive across the board, it's not going to come down to that for most buyers.National Bank: This is the 'standard,' the 'baseline,' what most people do. 5 year prepayment penalty is slightly unfortunate, as many pontificators say rates will be dropping "soon," and it may make refinancing a little more painful.

This is standard for most balloon finance prom notes.

In Oregon the buyers deposit is generally fully refundable during the standard 10 business day contingency period (unless waived) and the difference in deposit could be interpreted as the level of commitment the buyer has towards the transaction, within reason.

See if it’s a standard charge for your market or your Pm is taking advantage of you.

We must also monitor regulatory changes, tax policies, zoning regulations, and environmental standards that may affect property values, development opportunities, and operational costs.

What are the industry standard marketing and design tools people use to create marketing materials and OMs for commercial real estate?