Hi @Tammy Vitale
Hard money lenders will issue LOIs (Letters of Intent) to fund specific properties. If you plan on purchasing or are in contract to purchase a property, based on the property type, purchase price, the cash you plan on bringing into the deal, and the loan term you want, the lender should be able to tell you "Yes, I'm interested" or "No, this is not a good fit for me." If it's a yes issuing an LOI should take no longer than an hour.
Regarding your question: "Should I talk to a hard money lender before making an offer to purchase?", it's up to you-- but you need to make sure you are within the lending guidelines of the lender you are approaching for your deal. Last week I closed a loan on the purchase of a $2.6M property-- the borrower who purchased the property approached us already in contract.
Hard Money Lenders can move much more expediently because we don't have the same hurdles as conventional lenders.
Hope this helps, best of luck.