It is not expense typically, but as @Michael Plaks states it appears your taxable gain is minimal and the cost of the exchange would be about the same.

The 3-4 family would then become a rental that we would ultimately hold long term.The other 2 units we would clean up and do minimal work to initially and when the first round of tenants leave, renovate/upgrade the other units as they become vacant to hopefully increase the rents.I had been researching single family options prior to COVID and am starting my research on multifamily and hoping you guys can point me in the right direction to save some time on a couple of things.

It was painless and I got in done in about 3 weeks with minimal paperwork.

I have 0 direct experience, 0 RE-specific connections, and minimal deployable capital.

Any tips on minor touch up to spruce it up with minimal spend ?

If everyone filled out the application, then I would say that they did not meet the minimal criteria and repeat what was in the ad. 

My lender will only do 70% LTV cash out refi on MF properties and that is based on the lower of the appraised value or the total investment costs.If I was to change my strategy to just buy and hold, make minimal repairs and keep renting the deal may look better.

I can live with minimal cash flow with no money in the property, but I own it.I agree, the properties do seem to have been taken care of, but I don't know how well because I can't see them.

Is a minimal 6 months of holding period required for refinancing?

Yeah, only going to put the minimal criteria from now on