I found this related post. https://www.biggerpockets.com/forums/70/topics/1202777-conne...It looks promising but some risk factors to consider, if company goes under, etc. 

Factor in regulations and being dependent on OTAs, and it seems pretty clear to me.  

Hi Sharon,There are several options for borrowers with poor credit to still get financing, the lenders will just be looking closer at some other factors such as the borrower's experience and their liquidity.

I’d factored higher vacancy but also ~$900/door.  

@Jason MalabuteTax prep fees will vary based on a number of factors. 

Be wary of TX property tax as it is very expensive and can impact cash flow if not factored properly.

- What driving factors should I take into account when l'm looking for an up n' coming hot markets?

Here's the links I think you would find most useful given what you've said:• BiggerPockets Market Finder - Insights into zip codes, recommended cities to invest in based on factors like rent to price ratio, median home value, and more.

I think the experience of the operator is the biggest risk factor we see.

Lots of different factors.