The Fultons' company would hold the inactive license until the property is leased, according to their attorney, Jason M. Divelbiss.
Divelbiss said both the county and a restaurant, which he would not name, had inquired about renting the property.
"We're very optimistic that one of those two will work out," Divelbiss said.
The owners have no preference between the two potential tenants and will lease to the one that shows the most interest, Divelbiss said.
The restaurant probably would want to use the property's liquor license, while the senior center would not, he said.
The new owners of the building suggested it for a senior center March 27 in an e-mail to Washington County Commissioner James F. Kercheval.
The site "would offer a convenient single-story facility close to the downtown area that is easily accessible, not to mention it being a long-time landmark easily related to by the seniors of Washington County," Mike Rhodes of AC&T wrote in the e-mail, which he said he sent on behalf of the Fultons.
The 7,421-square-foot building is on 1.41 acres of land and has more than 90 parking spaces, according to a fact sheet Rhodes sent with the e-mail.
The site was one of several offered to the county after the Washington County Commission on Aging proposed putting a senior center on the upper floors of the Aspiring to Serve building at 140 W. Franklin St. in Hagerstown, Murray said. Many seniors opposed the downtown site because of accessibility issues, parking and other concerns.
Most of the other sites suggested were too expensive for practical consideration, Murray said.
Rent for the Richardson's site would depend on whether the county or the owners paid the up-front cost of renovations, Murray said.
Susan J. MacDonald, executive director of the Washington County Commission on Aging, said the commission would want to include at the Richardson's site such amenities as a gymnasium, classrooms, computer labs, a lounge and a cafe.
About 99 percent of the seniors the commission has talked to are "extremely enthusiastic" about the idea of using the Richardson's building, MacDonald said.
The commissioners will consider the idea during general budget discussions scheduled for Tuesday at 11 a.m., at 100 W. Washington St., room 226, Murray said.