“Our franchisees instantly grasped the strategic benefit this would bring to their hotels,” Mr. Pacious, who leads Choice Hotels, said on CNBC.

As the weeks have passed, however, the reaction has not been positive. Wyndham Hotels and Resorts, the target of the proposed deal, rejected the offer from Choice, which is now pursuing a hostile takeover. And in early December, an association representing the majority of hoteliers who own Choice and Wyndham-branded properties came out strongly against it.

“We all don’t know what’s driving this merger. Many of us feel it’s not needed,” said Bharat Patel, the chairman of the organization, the Asian American Hotel Owners Association. The group surveyed its 20,000 members and found that about 77 percent of respondents who own hotels under either brand or both thought a merger would hurt their business.

“I’m not against Choice or Wyndham,” said Mr. Patel, who owns two Choice hotels. “We just need robust competition in the markets.”

That opposition illustrates a growing resistance to consolidation in industries that have grown more concentrated in recent years. Even some Wall Street analysts have expressed skepticism that Choice’s proposal is a good idea.

The views of hotel owners could become a hurdle for Choice as it seeks approval for a merger from the Federal Trade Commission, which has taken an interest in franchising as evidence has mounted that the economic and legal relationship has increasingly tilted in favor of brand owners and away from franchisees.

To understand why franchisees are worried, it’s helpful to understand how hotels are structured.

About 70 percent of the nation’s 5.7 million hotel rooms operate under one of the several big national brands like Marriott or Hilton, according to the real estate data firm CoStar. The rest are independent.