You could create a separate event called “other expense” that happens to match the savings contribution, but changes to one do not automatically make changes to the other.  

I guess if the rent and deposits were high enough, maybe, but then the numbers would probably push you to owning.

. $500 and full security deposit returned if they leave in the next week.

So a new purchase would have to match this Net $ out, the new mortgage would have to be >= old mortgage payoff. 

Landlords are out money which is going to make them screen harder, require higher deposits, increase rents, or maybe just get out entirely which would shrink available housing or make it significantly harder to obtain. 

@An Duong it's really up to you whether it's a good enough deal for you to agree to that.I will say, besides the two years of below-market rent, you should also factor the cost of an eviction into your thinking.It may not end with an eviction, and if it doesn't then you'll have saved some money, but I would go into it with the assumption you'll have to do one since I think there's a non-negligible chance of that.In a negotiation, sometimes it can be helpful to try to figure out the other person's motivations and find other ways to meet it.For example, if he's worried about being able to afford market rent, then if it's $200 below market a month, and you don't want to tie the unit up for a second year, maybe you offer to pay $2400 more at closing and only have him there for one year.If he really likes the area, maybe you find him an apartment in the area and offer to pay his security deposit, a moving company, and X months of rent to get him started.

At closing, the seller will have to turn over the tenant's security deposit to you plus whatever the pro-rated rent is. 

We are selling our rental home and lot, currently held in our Living Trust, depositing the gain in a new bank account in the name of our llc, and buying in an Opportunity zone, in the name of the llc.

Give the gift check to the Recipient so they can deposit into their bank account.4.

If you have a few reputable buyers, you can search specifically for deals that match their criteria making it much more likely that you'll find a buyer for your deals...Of course, you also need to know what a good deal looks like.