Help merging similar rows into columns

Hi

I have a worksheet of about 27000 property owner addresses that I need to correct in a database. Unfortunately when data capture was set up it did not account for multiple property owners and multiple property owners are listed in rows rather than columns which will cause duplicates of properties when I try to upload it. Basically I want to move multiple owners of a common property from a row into a column.

Please see the attached example.

I see that the formula needs to achieve something like;

If text in column B and D is the same for any row then consolidate the text into one row and move the text in that is spread over multiple rows in columns F, G, H, I and J to new columns in the same row as the consolidated B and D text.

Any help would be much appreciated
All names are fictitious.
thanks