Reporter Brooks Egerton on the Dallas Morning News‘ Investigates Blog says that negotiations between the Nasher Sculpture Center and the financial backers of the Museum Tower — over the tower’s reflected glare possibly damaging the Nasher’s artworks and garden — “have all but broken down.”

An attorney for the Dallas Police and Fire Pension System, Gary Lawson, blamed public criticism for the failure of the talks and threatening the $200 million building’s viability.

Purchasers of condominiums have canceled contracts and sales of additional units have been “substantially adversely affected,” Lawson stated in a letter he provided to The Dallas Morning News.

“It is reasonable to anticipate that litigation will take place within the very near term, days if not weeks away,” Lawson wrote.

Richard Tettamant, the pension fund’s administrator, confirmed in an email message Tuesday morning that a lawsuit is being considered.

“I believe that the Nasher and the Pension System wish to resolve this issue amicably,” he said in an email, “but we have to protect the Pension System’s and Museum Tower’s legal rights.”

A joint statement by the Nasher and the Museum Tower reps is supposed to be made this afternoon — by Tom Luce, the attorney who was attempting to facilitate negotiations.