I maybe met some of you at the recent meet up at Ironton.

Welcome to the show.

not sure what your trying to learn or do.. but just pay them by the door.IE  10k 20k 30 k 50k.. each GC will have their own fee.Myself I pay on the low end because i do all the accounting for the GC he only has to cordinate the subs .. 

I know mortgage lien will be extinguished but not sure the other types.

If you don't have a unit open to cycle each tenant through while you renovate them, you don't have an option because things will keep breaking when occupied and you will be getting less and less rent and no profit for years.

What is the suggested maintenance for older houses?

Legally you are allowed to make the place the most unlikely to rent.

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

I realized that the best way to compare and contrast these properties is to calculate the ROI of each.

Once an offer is accepted, the agent forwards the money to the title company or closing lawyer.