As a DIYer, do you have some knowledge, full knowledge or "Never done it, but I think I can YouTube it and do it"? We're in the some to full knowledge category, depends on what it is.
Over the years we've had to fix what other DIYers have done. Electrical wires spliced together & wrapped with electrical tape. A bathroom addition that had a furnace vent but it wasn't attached to the furnace ductwork (not even close). A big hole in the wall the owner strategically placed a large piece of furniture in front of to hide during the showing & inspection. Kitchen cabinets that are not level and from one end to the other are almost 1" off. Thank goodness that's in the basement and not very noticeable. After I noticed it, I had to get out the level and prove it to my husband.
Over the years we've had to fix what other DIYers have done. Electrical wires spliced together & wrapped with electrical tape. A bathroom addition that had a furnace vent but it wasn't attached to the furnace ductwork (not even close). A big hole in the wall the owner strategically placed a large piece of furniture in front of to hide during the showing & inspection. Kitchen cabinets that are not level and from one end to the other are almost 1" off. Thank goodness that's in the basement and not very noticeable. After I noticed it, I had to get out the level and prove it to my husband.