On the other hand, my short term company has done better than usual for a slow summer market.

The HUD lease supersedes your lease in cases of discrepancy.We recommend to our clients to NOT worth Section 8 housing unless the rental market demand is very slow.

If I know the tenants account number is it possible to setup auto withdrawal from my bank. 

Starting slow is a smart approach, and you can consider house hacking or investing in REITs (Real Estate Investment Trusts) to get your feet wet with less capital upfront.

Offer to sell for an exorbitant price that sometimes slows calls.

If the market is slowing down, it might be better to hold and wait for a better time to sell.It's great that you're thinking ahead and considering all your options.

We have been buying all our rentals the "slow" way by saving up 20%, buying a house, renting it out... repeat.

Use dynamic pricing software in conjunction to you checking manually daily/near daily.3 - Discounting slow period and longer stays.

Great assets (cashflow and appreciation, low to no cap ex), steady (low cash flow, good tenants, slow appreciation, low to no cape ex, and dawgs (low to negative cash flow, lots of cap ex coming, aggravating tenants).

However, I’m not letting that slow me down.