I toured a prefab company, Blue Lofts io has some units, but its very tough to make it profitable.

Interest rate, AM period, I/O, adjustable?

While there are minimum loan amounts and sponsorship eligibility (mainly NW, Liq, experience) requirements, if these are met, then Fannie & Freddie offers long term fixed rate loans (5,7,10,12,15,20 or even 30 year terms) with 30 year amortization and I/O periods.  

BLS, The Census, Data USA IO, City-Data, The department of numbers are a few

Now I have the option of cashing out $50K via a cash out refinance at a 4.875% 40 year IO first 10 years interest only, which works out to around the same payment but interest only. 

They should at a minimum be able to tell you the loan is amortized over X number of years, if there is an initial interest only period (known as I/O) and then when that rate reset timeframe is, usually around the time your I/O period ends, or within the first few years of the loan origination.

It all comes down to whether you want them to be debt partners or equity partners.If you give them straight 10% IO for a year, then pay them off by refinancing into a long-term loan, that could be attractive to some investors. 

Enough desk space to place a note pad, a coffee cup and whatever miscellaneous stuff someone may need (for me, it's 2 different pairs of eyeglasses).

Hi @Adam Pippert I, myself, don't use the IOS app that much anymore due to its limitations compared to the actual website.

First CommonwealthFirst Midwest, up to 90% Chicago areaFirst Republic - CaliforniaFulton BankGFA Federal Credit Union 10 yr draw, 10 yr repay, MAGranite State CU, NH 90-100%Great Lakes Credit Union Veritex , Texas HELOCHSBC 70%, for premier clients only Huntington 75% LTV 5 yr IO product available Hurst Lending and Insurance Investment property HELOC in Texas.