I've had to deliver them once or twice.

I have always sent or hand delivered to tenant a formal letter\notice at least 2 weeks before closing of the transfer of lease agreement, security deposits, and tentative date of the closing. 

Our downtown market has had record breaking number of new units being delivered over the last few years. 

Originally posted by @Andrew Boettcher:your lease should state that tebabts must keep all utilities current, so gove them a notice to cure or vacateIs there a rule on how such a notice must be delivered ?

I found that the SSA Expo sessions all seemed to be one sales pitch after another with little useful info being delivered.

I looked at some with plastic gussets with no extra support and I was not comfortable with that. 15.5' of 36" uppers 8.5' of lowers for $3,500 delivered.

But these same people will shop the internet like crazed maniacs, chasing every .125% rate savings pop up ad they see, thru sources that don't deliver, and on loans they likely won't have more than 60 payments before they refi or sell anyway.  

(price per square foot is arguably the most common metric to value an investment, especially a property that will be delivered mostly vacant)What are the current taxes, and who is responsible for paying utilities?

If you are super-confident these are solid LEADS and not just prospects, check out the cost of a messenger service to deliver your envelopes - here in my area I can get them sent same day within 4hr delivery for less than fedex next day.

The kicker to that is he will have to deliver one month's rent to the court within +-3 days and of course he will notAt that point the appeal will be dismissed and you would have to file for the Writ of Possession for the Constable to come out and supervise you and your crew(yes you will need bodies to move out his stuff).