Table 1-4 is the Rollover Chart in IRS Publication 590 that can guide you.

Get on the same side of the table with the seller and solve the problem together.

With completing a 1031 exchange into a more expensive property, their depreciation table would reset as well, providing an even greater benefit. 

What do you bring to the table and what do you need from a partner?

In fact, I just tossed away an amortization book of tables that I've had for almost 30 years, when we were doing some winter cleaning - the lowest rate it went down to was 7%.

They tell you 8% then charge you 9.35% at closing knowing you won’t leave the closing table.

I had a renter that rearranged all the furniture, left everything absolutely filthy, grease spilled all over the counters and oven, food spilled on the floors and table, trash left everywhere, etc.

It's not a fair partnership if you the tap the equity of their property to use together if you aren't brining any capital to the table.

If they want an oven, they can get a table top one for under $100.

I do think it is a good idea to take some money off the table when an asset runs up and diversify.