Is front foot asessment deductible?

It’s possible.  It depends on the nature of the assessment.  

The following is from “Taxes for local benefits” in Publication 17 (2017), Your Federal Income Tax:

“Deductible real estate taxes generally don’t include taxes charged for local benefits and improvements tending to increase the value of your property. These include assessments for streets, sidewalks, water mains, sewer lines, public parking facilities, and similar improvements. You should increase the basis of your property by the amount of the assessment.

Local benefit taxes are deductible only if they are for maintenance, repair, or interest charges related to those benefits. If only a part of the taxes is for maintenance, repair, or interest, you must be able to show the amount of that part to claim the deduction. If you can’t determine what part of the tax is for maintenance, repair, or interest, none of it is deductible.  

Taxes for local benefits may be included in your real estate tax bill. If your taxing authority (or mortgage lender) doesn’t furnish you a copy of your real estate tax bill, ask for it. You should use the rules above to determine if the local benefit tax is deductible. Contact the taxing authority if you need additional information about a specific charge on your real estate tax bill.”  [Bolding mine.]