Are there additional liquidity strategies outside of having a more substantial cash reserve?

My bigger concern was what the impact could be on the larger CRE and the trickle down affect it will have if those owners no longer sell and just hold for the long run. 

For the other duplex, it would depend on the current rate, but again, it may be worth doing another cashout refi if your goal is to buy a larger building and leave some of the cash as reserves for any repairs needed on all the properties.

The DYI nature leaves me struggling to find larger quantities of plants and gravel at a quality price.

Additionally, the city of austin is just now trying to hire more permit folks to allow for the much larger volume.

The larger subway tile pattern with a grey grout will pop well and not break the bank.

Specifics:Chicago far west suburbsCurrent appraisal: $175KCurrent mortgage: $90kCredit score:800+Liquid cash on hand: $75KPersonal DTI:<20%Total DTI not including rental income:<30%I would think this is a home run.

I would see separate accounts usually on larger commercial buildings. 

Expected monthly repairs and budgeted cap ex were lower, due to the repairs completed immediately after purchase.Post refinance, the mortgage payment increased from getting a larger loan, decreasing the monthly expected cash flow to approximately $200.In the 16 months of owning, the property was rented out for 11 months.

It depends on your portfolio's characteristics (and your credit score, liquidity) but the typical range is about 4.75% - 5.5% for a 30 yr fixed, with a 5 year prepayment penalty (if prepayment penalties are allowed in your state -- some states, like OH, MI, PA have restrictions on prepayment penalty terms & fees).