I think the first question I asked here is regarding runway.

You have to have the cash to stick it out as you won't see much if any cash flow, the property will be management intensive, and the runway isn't 2-3 years but more like 10...development is great but remember that these companies are playing the long game of decades not years.Just approved this week - 130 Kindley was changed from 20-story to 40-story and will be 2-3 high rises.

Then go refinance as much as you can into Spouse A's name alone, and as much as possible just into Spouse B.Now you've each got 4 and 8, or 6 and 6, or whatever, but below 10, without selling anything, and  each of you individually has lots more runway to work with.Go ahead and move all big liquid savings / down payment funds into a joint account with both names on it.

We are investing in markets that we feel have some runway left in todays market cycle.

Eventually at some point you'll have to shift toward making the 25%-ish down required for conventional commercial loans, but those first couple of doors can get you started, and cash flow can help shorten the runway to the next deal if you continue to live frugally.

Firstly, I commend you for having this perception at this point in your journey.I would state that at your working age you have considerably more longevity and runway and time for compounding returns. 

Would need a lot of runway for me to feel comfortable.

I keep a 4-6 month runway in cash in my portable storage business checking accounts.

Keep in mind your debt to income ratio will start to be impacted at some point so you might start to run out of runway.