I have pre-printed deposit slips that I give to my tenants.

Emotional Support Animals is where the typical abuse lies - there are websites that will print you certificates for that in minutes.

I would be very careful of what you say and how you say it in email and text as that can often be printed out and used against you.

And don't mind to have better place 2-3 hours away from work .3D printer , bring the house coat down by printing the houseOnline retailer, what will be the future of comercial real estate ?

Take your list of prospects and upload it into a mail house like vistaprint.com and have them print, label and mail the letters/postcards for you. 

I had planned on printing and mailing them out myself.

All PMs I talked to suggested I rent for $200 less than I did and wanted to charge me 10% for being a messenger (In the fine print).

You will need to review the fine print to find out exactly how strong the contract is that you signed. 

A lot of times, this would mean finding a property with a larger foot print (like 4-5+ bedroom), and renting out room by room instead. 

I like cutting paper checks to vendors and etc...I like the big black business checkbook binder, especially on the jobsite (nothing feels more like the Boss than having that check binder in hand).You can que checks to be printed in Quickbooks and then print and sign them.Or have someone else prepare, que and print the checks for you, but retain signing authority to yourself and physically control the paper checks to prevent theft of funds.You could run an A/P day every 2 weeks (or more, or less) as needed.Standard Accounts Payable precautions (bonded, etc...) should be taken if you have someone else keying them in (your CPA should be able to clarify this).With another set of eyes and hands on the cash bank account you have to be careful of embezzlement.Then just have the person paperclip the check to the invoice and stack them in a wire basket for you signature.When done signing, return them to the person for envelopes and mailing.Have your A/R person input the handwritten checks from the binder also.