It's the complete opposite where I am - no one will sell their existing homes because they won't give up their ultra-low rates.

Affordable Housing Incentives -While SB 9 encourages new development, it also includes provisions to protect existing tenants and preserve affordability.

But I could easily make this a 3 bed, 2 bath within the existing sq ft. 

In this market i would only go that route if you have the resources to cover their initial investment so there would be no loss of capital if things go bad.One of the syndications that i am an LP buys MF, rehabs the existing units, converts tbe garages into max number of studios, brings all units to top of market rent, and exits with max NOI.  

I don't think it existing back then, though. 

Upgrade to a commercial-style stackable setup that can dry faster (30–45 minutes), hopefully fitting in our existing laundry closet without extra electrical work.Any recommendations or specific brand/model suggestions for handling this high-volume, semi-commercial laundry?

New unit: 4-unit multi family in which 3 units (with existing tenants that will carry over from seller) will remain investment; I will move into (currently empty) 4th unit AND USE as primary residence with primary mortgage.

I would like to think in a way that investment in general, and the real estate investment, start with a solid economic reason - "Why do you Invest, where you invested".To elaborate on below - Vegas is a great example where no real economic driver exists and when you invest there, you should be aware that is a highly volatile market (side note: i both 2 properties there in 2011 and 2012 and i sold both this year) and you should pay an extra attention and be prepare to reposition capital.It's clear, if you invest in Vegas or Orlando (just 2x entertainment cities) you will expect ups and downs and you need to position yourself with extra reserves and extra caution if you are planning to stay in these market for long term. 

I have to decide if im going to use a new injection of capital from the sale of my primary residence to:1) Hold in treasury bills at 4.5 percent until I find another property to purchase2) Pay off one of two existing mortgages, one at 3.75 percent and another at 4.5 percent3) Just find something to buy that beats either of those percentages on paper and be done with it4) Possibly loan out some hard money/broker it to a friend to allocateIts never an easy decision, but its a good problem to have.

Because the owners of Licensing Experts pay ALL CASH, the closing usually occurs 3-6 weeks, which is very fast compared to traditionally financed commercial deals I've seen on Bigger Pockets.The whole thing hinges on their very clever technique of getting existing commercial retail tenants engaged, willing to move into their newly acquired properties who are coming up for a lease renewal or lease expiration, rather than marketing for new commercial tenants - which would take way too long.Licensing Experts is somewhat of a "front" for their Mentorship Platform, as they evidently have many of their own separate entities for which they use to actually purchase and close on their commercial properties assigned by their mentees.