Both have a period of 3 years running concurrently.  10k option money, not counted as a down payment and no portion of the rent is held back as a down.  

I am scaling up my business, going from 1-2 concurrent projects to 3-4.  

Can I hold them concurrently?

Liz has overseen over 1,500 units concurrently in 15 different developments all at various stages in the projects life cycle

Contingent upon Sellers purchase of replacement home with concurrent close plus 2 days3.

I can't emphasize enough the importance of learning all you can while concurrently applying your new found skills.

You can close multiple mortgages concurrently or back to back, but not staggered.This might be a concurrent closing scenario, if you're trying to pull cash out of a property you currently own for the down payment on the other. 

I had planned more to have the tenant buyers complete my application thatand screening that I could take to the  seller for their concurrence.

The issue for you is the 180 days and it runs concurrently with the 45 day period.  

But, if you don't have a family of five taking concurrent showers, the value of the tankless begins to diminish.My main struggle with them - apart from the fact that they can be quite expensive - is that they still seem a little finicky (must have the precise gas volume, water pressure, exhaust venting, etc).