What are the flaws in my plan? Worried about refinancing

[Nicole Heasley Beitenman]

We have 2 properties. One is a 1 BR/1 BA, the other is a 2 BR/1.5 BA. The 2 BR has been rented out as an LTR since we bought it in 2018. My dad has been living in the 1 BR since we purchased it to cover holding costs as we rehabbed it, but it'll be ready to rent by the end of this quarter. The plan is to market our 1 BR as our first MTR. Smaller properties have always been our niche, even before we learned about MTRs. They're inexpensive, there's less competition for them, there's strong demand for them as LTRs because there isn't as much supply, lower repair/rehab costs, and there's typically less wear and tear because you don't have as many folks applying with multiple kids, pets, etc. Even if the MTR strategy doesn't work for us, these houses still do well as LTRs, so we do have a plan B.

If this works out, we'd like to continue purchasing properties utilizing business lines of credit for either the down payment or the entire purchase (more likely the entire purchase as the low price points make these properties difficult to finance with 15-25% down); I'm a traditional lender whose 100% commissioned without 2 years of said income on my taxes, so I'm ironically ineligible for traditional financing. I could use private/HM lenders for the purchase, but I think it would be easier to just pick the property up with my own cash and utilize the private/HM lender after the purchase and rehab. We're working with Prime Corporate Services to learn how to build business credit and obtain lines of credit. 

My biggest concern is refinancing. I'm already compiling a list of lenders, both traditional and hard/private, with lower loan minimums. I'm in NE Ohio, and lending is a PITA here. Our price points just aren't that high, so finding lenders who don't have a $100k minimum or more is tough.

Outside of the refinancing, am I overlooking any other obstacles? I appreciate any and all feedback!