The people that own these vacant properties probably don't know where to turn, and you come riding in on your faithful steed (social media platform of your choosing) offering them an opportunity to rid themselves of something that is taking away from their ability to live a better and more fulfilling life (financially speaking). 

Other than that your criteria should be relatively easy to fulfill.

When a couple has fulfilled the terms of the lease and moves out, and are also going through a divorce- how do you refund the deposit?  

Unless Canadian laws are very different, the new landlord is required to assume and fulfill the contract.

You're close to the eviction and then they'll be gone.As for the downstairs tenant, I would try to convince her to stay and fulfill her lease.

However, when it does, it means a tenant fulfilled their lease, didn’t owe me any money when they moved out, and left the unit in damage-free condition.

Lease fulfillment guarantee-start the description with this sentence.The lease fulfillment guarantee protects you from loss of income due to an early move out by the tenant.

I've thought about putting under contract, its a vacation home for current owner and he needs at least 90 days to fulfill his obligations, and marketing it locally at a 10-15k bump, then do a double close.Any advice on how to proceed, would be appreciated.

(If not, I don't charge the tenant.)3) If there's damage that's going to cost me, but it's relatively minor and the tenants were good tenants and they were with me for a long time and otherwise fulfilled their lease and made an effort at cleaning the place when they moved out, I'm not going to charge for it. 

I'm willing to learn anything that will enable me to live more efficiently while finding inexpensive ways to live a fulfilling life (I've read a few articles by Mr.