Have you done a basic market demand study?

It is complicated but you basically just need the number of people on the loan that have sufficient credit scores and income to get the financing you need.

I was thinking maybe a wraparound mortgage was the answer, but I read somewhere that they can't be refinanced - you're basically locked-in for the length of the loan?

@Greg SmithAssuming you are the sole owner of the LLC, the IRS sees this as a "disregarded entity" - meaning it basically still sees it as a sole proprietor.

Basically her water and electric bill increased by hundreds of dollars the month before we purchased because the AC wasn’t fixed and because she didn’t know about the pipe.

I've been told some credit unions will do up to 95% LTV HELOC so that would basically be like having an FHA mortgage without upfront or monthly PMI. 

Just looking for a basic explanation of pros and cons.  

Hypothetically, if a mix property (commercial main level and two apartments above) only has $80k left on a $350k loan and the property is worth $500kand the taxes are $12k/yrand the rents are $4k/moand the owner is your father in-lawand he wants to sell but worried about the income taxesand he doesn’t want to buy another propertyand the building needs about $50k in updating and roofand you want to help him out by taking it over with seller financingWhat terms would make sense for him without a huge tax consequence and basically still get some of that income from the buyer, us?

Basically you need to know the ARV of the new property, and calculate the percentage the bank will refinance.

It was basically a "point the finger at other tenants for high usage each and every month" To their benefit in many ways I agreed with them as I wouldn't want to pay for other people who weren't responsible for water usage.