@Taylor L. There may be several ways to skin that cat. One has to distribute as an RMD a percentage of the total of ones IRAs, so if you keep funds in the market in any of your IRAs, you go there to make the distribution. On the other hand, as I understand it, one has to distribute from each and every 401K. If you have a Solo 401K sunk in R.E, that would be a problems.
What follows is from the perspective of a more wealthy person. If you are planning to be broke in retirement, no need to read. But why would a broke person be on this site anyway... And I apologize for hijacking the topic a bit.
For the youngsters that have never heard of RMD (Required Minimum Distributions), at 72 you are forced to take distributions from non-Roth IRAs and 401Ks. Each year the distribution is based on life expectancy; the first year is about 4% (3.8% I think). Say you were a good saver and have $1M in your Trad IRA. You are pulling $40K out at 72, adding that to about 85%* of your Social Security to make tabulate your income and the tax there on. Say you and your spouse both have $1M then you are distributing $80K, and this will likely increase as you age. A couple things can cause some pain. 1. If you are a great saver, when your income hits (this year's numbers) $176K, your Medicare costs increase $50 per person, per month. Look up IRMAA. 2. Note when one of you passes (Financial Planers always kill the guy off first), the remaining person inherits the IRA so will continue to get the full amount. The lower SS disappears. And the Standard Deduction decreases and the tax rates increase (married to single), so that you get a big surprise in your taxes from then on. Look up Widow Tax Trap.
Another thing to consider is that your RE and all owned assets get a step-up in basis (again, current admin aside!). IRAs do not. If you pass a non-Roth IRA to your kids, they get to pay the tax as they take it out over a 10 year period. Perhaps you don't care because you're DEAD, but perhaps you do.
If married, consider the idea of Roth Conversions; the distribution tax rate is arguably higher than you think it will be.