She too was delivering food to help pay for their $80 a night extended-stay hotel room.

As if it ever delivered any good results in past.  

You will have a pipeline.If you cannot do 5000 letters a month, do what you can whether its 3000 or 2000.When you're doing a small volume of mailers like 2000, I would make sure your list is actually big enough.   

You can avoid alot of issues by sending out an email for example if you have a materials delivered and the guy is temporarily blocking the driveway or taking up a space.

You can get rid of them as long as you follow the letter of lease/state law.. 

I strongly  encourage to share this information  and write an email and letter to as many state representatives and the governor to veto this bill or reverse  it.AB 2424 (Schiavo)

Do you have collected any certified letters of tax notices sent by the local tax collector?

For example, we have a multifamily deal in the boroughs where the contract rider specifically states if the owner cannot deliver the property by X date, the purchaser can back out with their deposit.If you have some flexibility on the contract, you could continue shopping active deals as backups.

I went through everything until manually signing 300 letters and sending then off to only receive one single call back from a curious guy looking for a make me move offer. 

I believe WWC and my goals are aligned, however with these high upfront fees, it appears the general partners would do well with or without the asset performing, which risk is there with potential market correction coming.And, I see what you mean, WWC seems to be doing well with their system, so they may be squeezing more juice on deals now b/c they deliver for their investors.