Now this may have just been a coincidence, but I found if you buy the towing company, I got a call within 30 minutes real time in game for a private fare. I bought the taxi company and went many hours (real time) playing around as Franklin without getting any call. I had the same problem in getting the call for this achievement on both 360 and on the xbox one. Play the mission out and the achievement is yours. After this, you have on your Map a new green Symbol 'P'. In the call Raul asks if you'd like to work on a 'Private Fare' to earn some extra money. XxxDarkRuleRxxx notes that you can speed up the phone call by sleeping 6+ times in Fraklin's safehouse. Now you need to wait for a second call from Raul which may take some time so try to stick with Franklin and just play missions like normal, after 1-3 real hours you should get the phone call.

for $200,000 by walking up to the For Sale sign and press twice, once the purchase is complete you will immediately get a call from Raul who introduces himself. Travel there and buy the Downtown Cab Co. Once far enough into the game after you have stolen the Lost's plane as Trevor the option to purchase the Cab Co will be available to you, now select Franklin as your active character and travel to the upper right hand corner of Los Santos City in 'East Vinewood' where there will be a House icon with ($) inside it in this location. Before you can unlock this you will need $200,000 with Franklin

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