I would advise that you have them e-sign a document stating that they agree to stay in the property with the rent increasing from X to Y on the specific date.Regarding on the amount of the increase, that will depend on a ton of factors like what is the market rent there, is the current rent well below or above the market, is the tenant good, what is the condition of the property, etc. 

After listening to Michael Quarles on podcast 81 I realized the "fruit bowl" for equity was pretty much all I should really be mailing to.I mailed out to equity and got fewer leads and most wanted retail BUT they were all laser focused on sellers I could actually do deals with that had equity vs. other lists who may have a few who have equity, and a few who might actually be motivated (with no equity, underwater, waited to the last minute to sell). 

I usually hijack the office laser jet copier and printer when I can :)

In addition, I only have a black/white laser printer so the blue and red lines would not show up.

Laser-focused intensity.  

@Carson Sweezy I would say that you need to be laser focused on your "audience".

There's a ton to learn in this aspect though and you can't lose a lot of money quick if you're not careful but if you have your campaigns structured well, you can get in at a low overall monthly cost with laser like inbound filtering.Definitely worth the research.

The investment in a solid laser printer pays for itself.

Not a Fluke BTW Ive Done Several and bought nice toys with the proceeds and my investors LOVE The deal I run As We Are ALL MAking Huge Returns!

Time to play with the new toys!