Jeremy:
Typically most of my Subject To deals didn't have equity, actually the owners paid me to buy their home. If there was equity, they waited for it or if it was a lot I didn't do the deal, if they needed it. One thing to remember, homeowners who are willing to sign over the deed to their house and leave the mortgage in their name are motivated, i.e. two houses and payments, moving out of city, country, etc.
I would do a direct mail campaign into areas that I knew what the houses sold for and then the motivated owners would call me and I would have my Property Information sheet out and start asking questions, like how much they owed, what are their payments, etc. This is the point that I knew if they had equity or not and then would ask them, do you need the equity to make this deal happen? Most if not all, already had another house they were living in at the time. If they didn't want to tell me those things, they are not my clients.
I always marketed in areas with starter homes, 3 beds, 1 bath basement and garage in a good school system. I knew exactly what the house will sell for (Lease with Option) and why it hasn't as I talked to them. Most callers were listed with a Realtor and were not happy with them, i.e. the house didn't sell.
Here is the key to "Subject To" I used a worksheet similar to what the Realtor used to figure out what the owner will "Net" from the sale of their house. Meaning a Realtor "Lists" homes and that is different from what the owner actually takes home - "Net". The Realtor sucks you in with a big listing number. (No offence to Realtors out there, :) )
I would take the price that the Realtor listed the home for, minus the 6% Realtor fee, the 3% closing fee and any repairs needed to get the number I would offer the home owner. They were not scared, because it looks like what the Realtor showed them several months ago, and I have them agree to each line item as well. Typically that number was a negative number. I would shave off a few dollars and say Your House is SOLD for X today! They would write me a check, sign my docs and I am on to the next one. - I may have missed a step or two there, but you get the drift.
Hope that helps
Pat Gage
P.S. It is all in the motivation of the seller! They have to be motivated!