The gameplay could be improved by adding a couple of new monopolistic practices:

Hostile Takecover -- any mortgaged property could be purchased from the 'owner' at face value if landed upon. This adds a bit of fun by mimicking a takeover during an opponents weak financial times.

Eminent Domain -- the final remaining property piece needed to complete a full set for a player may be purchased from the current owner, at markup, by declaring eminent domain during their turn, if that property had been landed upon. The markup value would be set to the Hotel value for the individual property. Otherwise, the player could pay rent for landing on another's property. This adds the opportunity of acquisition for the purpose building projects such as houses and hotels.. or perhaps is key to a communities utilities or railroads. :-)

Real Estate Office would replace Free Parking. Landing on this would allow the player to purchase the Real Estate Agencies Client's property. The clients property would be the least valuable unsold property on the board. This improves gameplay by selling all the property more quickly, otherwise it can take a long time to sell off the remaining few pieces of property.

Everything except Free Parking. see above

Mark