What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

@Andres Triveno, operating the LLC 100% means that we sign contracts and other documents as member or manager of the LLC instead of using our own names, we have a business phone instead of using our personal phone, we have a business checking account for business spend.

.- Will still be challenging to acquire a SFR at a low enough price to justify the cost of any conversion.Regarding Michigan property taxes, we have a one-page explanation document we'll share if you DM us. - The challenge in Detroit is that the city is "deliberately" keeping SEVs low to not scare investors away over property tax increases.

If you stay on the mortgage, you need to write out a legal agreement as to what happens when she sells (or if she finds another boyfriend/gets married). 

I’ll give you some quick numbers.There is $385k left on the loan I am assuming from the seller at 4.25% for the next 2.5 years. 7 units currently are rented out paying $725 a month and I have documentation of this.

Is there a legal way to ensure they dont trash the place?

I recommend you do a google search for "real estate seller financing" and educate yourself through some blogs, then have a conversation to see if the two of you can agree on terms that work for everyone.Be sure to use an attorney to draft the documents, not the same one the seller uses.

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

I was a PMP on a deal and i gave my partner 3 months' worth of the mortgage in advance to stabilize the property. We bought the property via SUB2 and he has never made a single payment to the mortgage company. I came ...

If you use a DSCR rental loan it could be as low as 3-6 months of time seasoning required so it depends on what product you're using to accomplish the mission/goal.The time frame isnt a legal requirement, its a financing product specific requirement as a guideline to obtaining the money in which you seek.If you had other scenario related questions feel free to mention them below or via DM.