Primary Home - How soon does buyer have to move in after closing

[Weng L.]

Lease is expiring and I plan to sell the property, but tenant wants to renew the lease for another 7 months till 6/30/2022. If I put the property for sale now and if a buyer is willing to buy and take over remaining of the lease, will lender issue primary-home mortgage if the buyer will not move in until 7/1/2022?

The sale price will be $620-650k. The mortgage will most likely be either conventional or jumbo (depending on down payment amount). I found a place online mention about the rule of primary home loan - Buyer has to move in within 60 days after closing. However I can't find any official (Fannie/Freddie) document that mention about this. If it is a jumbo loan, each lender has their own guideline or flexibility on this and is not subject to Fannie/Freddie guideline, correct?