Closed on second house this week

Just closed on my second house this week. Both my first and second properties I am hanging on to for rental income. The first will net about $375 per month cash flow and this second one should net around $400 per month. I had just enough cash to buy the first one and renovate it. A Fannie Mae purchase so have had to wait 90 days due to their deed restriction before I can finance it through a bank I found. Have tried to negotiate with Fannie Mae to remove these 90 day deed restrictions on my second and subsequent offers with no luck. Anybody have any advise on how to get Fannie Mae to budge on this issue?