Tell them you want your deposit back in full plus compensation for them breaking the lease and any extra costs you incurred (eg did you have a cancellation fee for movers-I doubt it as you said you didn't know when you planned to move in).

Mine currently allows weekly rentals but it's driving insurance costs high.  

extra cash down saves you interest, but costs you the opportunity to make money with those dollars otherwise.

That’s means this one claim for under $2k after your deductible could easily cost you $1,000 or more per year for the rest of your life.

I believe the primary issue is the 20 year term on a typical commercial loan.My current focus is on buying and hold duplex properties, and around me that put the total acquisition costs around $200-250k, with total monthly rents being 1.0-1.3% of the purchase price.  

I have rehabbed it and now have a renter in place.

Yes STR does align with your goals a lot better, but for what you have already gathered with your LTR in Cincinnati, I think you may be missing out on looking at your opportunity costs for your LTR already.

And then closing costs...of $10k?  

This is roughly 35% the listing price, I get that they must have rehabbed the property some, but this seems extreme.I looked at another site, Trulia, and looked at the neighborhood. 

But it has been about 2 weeks since the seller passed and the seller's estate has not given any information to my relator or the title company.Given that the estate is contractually obligated to the sale & that I have money tied up in the deal (earnest money, home inspection cost, interest), I am looking for advice to move this forward and/or a suggestion for a real estate attorney in Cincinnati.