I am not a tax professional trying to sell you my services I am simply providing my perspective. 

Anything 1m+ will be harder to sell (I am making assumptions on the price), there is simply a smaller pool of buyers.

We like the approach of helping people to create good notes that we would be interested in buying if they decide to sell. 

Your QI will own the property you are buying and you have to have bought the property before you sell the downleg.

We've thought about trying to sell off each unit.

Also if you are selling, hopefully your agent has advised you but good practice to have a vacant unit to open the buyer pool to owner-occupied buyers/house hackers.

You need to make sure that you know what finishes you will be putting in, and what comps are selling with those finishes..

I have a 35 unit townhouse site that we entitled and will probably sell.

For example we opened buy/sell agency from being exclusive to portfolio clients now open to all.

It’s also important to distinguish between those who are genuinely advising you and those who are selling you a service or product disguised as advice.I went to my first real estate conference in Atlanta in 2005.