If you want to purchase that property, the only ethical thing is to purchase it through that Realtor. Otherwise, you could set up possible conflicts between your previous agent and the new agent you may choose.
You see, if your previous agent finds out you purchased the home with a new agent, he may want to claim all or a part of you new agent's commission. This could develop into a "battle royale" involving real estate agents, offices, managers, brokers, and attorneys.
You may be able to resolve the issue by letting your current agent know you have misgivings about their expertise and ask if a more knowledgeable Realtor from his office can be included in this sale to further advise you. That is the only ethical way I can think of to handle your situation. It isn't "your" ethical views, but the ethical views of the two agents. One agent isn't supposed to put together an offer on a property you have already previewed with another agent. This does happen, but it isn't ethical without some kind of disclosure and agreement between the parties.... more
Agents are all different in their approach and how they work with people. Some are formal and some are informal. That doesn't essentially have anything to do with their knowledge and ability to help you through your real estate transaction. Go with who you like and who you trust.... more