Get an item of value into each of their hands every 3 months (small gift).I am also a proponent of geographical farming.  

So sometimes that expression about the gift horse isn't true, lol.     

I want to give my children the gift of property so I am looking for some properties to leave for them. 

I recall reading an article or blog post about an investor giving their child a wedding gift of pre-paying their first year's mortgage principal.  

Before I left, I gave her a $20 Panera gift card for being so wonderful thus far.I feel like this is a very good relationship to have and even if a deal falls through, I can keep facilitating my relationship with her and the park. 

My plan now is to send them a welcome letter to introduce ourselves and letting them know a new rental agreement will be following shortly, a small questionnaire with the questions above and a Welcome mat as a gift.

My plan now is to send them a welcome letter to introduce ourselves and letting them know a new rental agreement will be following shortly, a small questionnaire with the questions above and a Welcome mat as a gift.

Wow - every day is a gift. 

To add in another alternative, your dad can "gift" up to about $17K each year to you tax free.

If that's all you need to do after a six year tenants, you should send them a gift  ;)