One last thing, I did not say there was no harm, I did say it was effortless…
Remember that real estate is an emotion based game. It is about as orthogonal to engineering as you can get and as my background was engineering prior to RE I was always amazed at how illogical people can get in transactions.
There are some sellers who will act AGAINST better financial judgement when they feel they have been slighted or insulted. Don’t ask me why but there are. So one of the tactics you should be aware of is to revisit rejected attempts you have made. You submit an offer, they snub you, you go back 2 months later.
However you may find that some seller may just flat out reject dealing with you due to your first lowball offer regardless of where they are at financially. Does this make sense? No it doesn’t. Have I seen it happen? Yes I have, not alot but there are some curious cases out there. I am not saying alter your strategy because if you play the odds, these are outliers BUT they are not impossibilities.