Quote from @Jake Handler: For anyone that has been a buyer or seller of a seller finance property, what method of payment and tracking did you use for buyer to pay seller monthly? 

If you cash flow $1K per month for 36 months, and then sell with the ability to pull back your original investment, would you consider that a win?

investors can figure on 10 to 12% return on PMLs   generally they are short term 6 months to 18 months.. in my 40 plus years at PML I find most investors started as landlords then tire of it and start to diversify.

Most DSCR programs will want you to have owned the property for more than 6 months to allow you to use appraised value instead of cost.

This is something you would have had the seller fix for you, especially if there was a water dispensing fridge installed.

If the bill is $100 a month split between four units, increase it to $120 and charge each tenant $30.How to calculate charges.

You can not do a pet deposit unless your security deposit is less then 1 months rent.

So for the bookings we get on there, I am invoicing her monthly for the cleaning fees and then 18% of the rental rates for each booking.

The other two don't take into account the time your money is tied up.  15% of ARV is great, if your flips take 3 months. 

US credit score (At least 2 scores must show) or Foreign Credit (At least 24 months of history with 2 tradelines).