My ex and I are separating and rather than selling the home to remove financial obligation from her I'm hoping to be able to refinance. 

You and your wife would not be able to both have one unless you're planning on living separately.

Expect some mistakes and redo's along the way to add to the time.Expect any government inspections to add to the time.If you can keep the same team all the way through by the time they get several units under their belts they may be able to go faster--providing they can get the materials.In my opinion, it's more intuitive to look at each unit as a separate job, vs demo all kitchens and tubs in X units as a job.They can still come and demo several units, just for me it's seems easier to keep the Tiger by the tail this way.If you buy all of the materials at once, you will have to guard them against theft and store them somewhere. 95 toilets going missing probably won't tank your budget, but it might tank you enthusiasm for a while.Make sure to budget for a dumpster if you need one, and porta-potties for the workers to keep them from using the ones in the units. 

In our subdivision, it is listed as a separate lot with a driveway/common area easement.

I reside in California and am 47 years of age.Over the course of the year 2020, I purchased 3 separate single family homes for rental purposes in Alabama as investments.House #1 was purchased for $121,000 and is now valued at $168,000 with approximately $90,000 in equity. 30 year loan of about $610.00 a month.House #2 was purchased for $150,000 and is now valued at $227,000 with approximately $118,000 in equity. 30 year loan of about $795.00 a month.House #3 was purchased for $115,000 and is now valued at $160,000 with approximately $73,000 in equity. 30 year loan of about $583.00 a month.All three are rented out with long term tenants and I profit about $1400.00 a month across all three properties.My long term plan is to acquire additional properties for investment purposes.

If that's going to be an issue down the road, just do the loans separately.

Do not let your emotions get involved.

It was an emotional rollercoaster on the first one you really just have to do it, and find the answers as you go.

But I’d list both LLC’s and both photogs are separately and fully responsible for the full rent.

I guess you could try to hide it form them, but that means two separate purchase contracts and property B needs to close after property A.