I am seeing some delinquencies that show foreclosure, but the numbers don't make sense unless there is some sort of ground rent or non-mortgage loan tied up with the properties.

For example, years ago I refi'ed 3 loans into 2 --- so one property became free and clear. 

All of these area important questions to ask, and stone foundations will have some levels of moisture unless you do a really serious waterproofing job.Concreating the perimeter with a small slope away form the home with a elastic sealant between the home and concrete is usually the best remedy combined with proper drainage.Hope this helps

Because the homes were inherited and possibly has zero loans on them.

However, based on the loans they are telling people to get and the course time frame - that is heavily implied as doable. 

Short answer: No.It is very unwise to use credit cards, hard money lenders, or other high-interest loans unless you have the means to pay them off quickly.

70% LTV is the highest for conforming loans.

You'll receive more favorable rates with a personal loan.

The idea is for my sister and I to combine all three properties revenue, risk and maintenance in one LLC and pool the money to buy out the siblings AND keep separate deed/titles to our individual properties to do with as we wish after the 5 year buyout.   

Was also going to look into transferring my rentals lease onto a LLC, but if they were to call the loan due that would sort of hardcore suck.