There is no universal answer. Selling first can clarify available proceeds and reduce the risk of carrying two properties, but it may create temporary-housing pressure. Buying first can make the move easier operationally, but financing and carrying costs need to work even if the existing home takes longer to sell.

That is a lender and underwriting question. Some owners can qualify while carrying the existing mortgage; others need the current property sold or under agreement before the next financing works. Ask the lender to model both scenarios, including reserves, debt-to-income requirements and how expected sale proceeds affect the down payment and loan structure.

A buyer may propose terms making the purchase dependent on selling an existing property, but acceptance and exact language are negotiable and market-dependent. A seller may prefer an offer with fewer dependencies. If a sale contingency is important to your risk tolerance, discuss the structure with your agent and attorney rather than removing protection simply to make an offer look stronger.

Your estimated sale price is not the same as the cash available for the next purchase. Start with a realistic sale range, then account for the mortgage payoff, brokerage compensation, attorney and closing expenses, agreed seller credits, taxes or municipal adjustments and other transaction costs. Your attorney, lender and tax professional can address the items within their respective roles. Planning from estimated net proceeds—not gross sale price—creates a more useful purchase budget.

That creates another link in the transaction chain. Evaluate the buyer’s financing, the status of their property, relevant deadlines and the consequences if their sale is delayed. Price matters, but certainty and timing can matter substantially when your own purchase depends on your sale closing.

Depending on qualifications and the property, a lender may discuss a bridge loan, home-equity line or other financing strategy that accesses equity before the sale closes. These products can involve additional interest, fees, liens and underwriting requirements. Treat them as financing tools to evaluate—not automatic solutions—and compare the carrying cost with the value of having more flexibility in the purchase.

You may need purchase deposits before proceeds from your sale are available. Map the timing and source of those funds before making an offer. Keep sale proceeds, earnest money, down payment and closing cash conceptually separate, and independently verify all wiring instructions with the attorney or closing professional before sending funds.

When a sale and purchase are connected, a delay in one transaction can affect the other. Inspection negotiations, appraisal issues, title matters, condominium documents or lender conditions can change timing or available cash. Build enough contractual and logistical flexibility that one issue does not automatically create a crisis in the second transaction.

Sometimes transactions can be structured with coordinated dates, but two independent closings should never be treated as guaranteed to occur on the same clock. Recording, lender funding, title issues or a delayed transaction can disrupt a tightly chained move. Your attorney, lender and broker should understand the entire sequence, including when sale proceeds become available and when possession of each property is expected.

It can work, but it has little tolerance for delay. If sale proceeds are needed to fund the purchase, confirm the closing sequence with the attorneys and lender well in advance. Movers, keys and possession should be scheduled around the actual transaction plan rather than an assumption that both closings will record instantly.

Post-closing occupancy, sometimes informally called a rent-back, may be negotiated in some transactions. It creates legal, insurance, possession, security-deposit and property-condition issues that should be documented by the attorneys. It can solve a timing problem, but it should not be handled as an informal handshake.

Build the backup before deadlines create pressure. Temporary housing, storage, flexible movers, delayed possession or a different transaction sequence can be less expensive than making a rushed real estate decision simply to solve a calendar problem.