Blanket loan question

[Heath Thomas Jr]

My Partner and I have 1 rental property currently, valued at 200K. Our goal is to pick up another 3 (at least) by the end of the year. Ideally, we would like to purchase 3 using hard money and refinance out under a blanket loan. 

I'm currently looking at 3 we would like to buy. But see 2 possible problems.

1. Two of them are recently rehabbed and selling for very close to 75% of ARV. Seems a little tight if we want to refi and there's a market shift or the appraiser is having a bad day and we don't appraise at the exact amount. Two (2) produce great cash flow, total investment of 108K and rent for $2,800

- Question, Do blanket lenders of SFH look only at comps? Or will they take in to account the performance and Debt service ratio of the properties?

2. The total value of the 3 properties will be about 260K. And we would need a loan for about $180,000 just to clear the HML, and not get any cash out.

Question: Are their many blanket lenders who will lend on such a low amount ,~180K? If we refinanced our first rental, appraised at 200K for $150K would that help?  Bringing the total loan amount to $330K?