I reached out to the owner of a local park and they expressed interest in us purchasing one or more homes in their park, and assisting us with renovating and renting them. 

I was told to send each warning twice, one regular and another express and keep the receipts.

I just helped a seller use my Express Offers platform to receive a cash offer on his home!

At times you will find someone who passes all the requirements yet, in the end, fades away from signing a lease (often they continue to search for a rental even after expressing interesting in renting yours).

I just want to express how deeply I appreciate this community.

Would prefer to review the renewal terms prior to agreeing to renew.Verbally expressing an interest in renewal is not a contractual obligation.

Now the widow is staying thru her lease  which ends in May.In talking with her she expressed a 'possibility' of wanting to stay past lease end, a month or two.in short that doesn't work for us.

I don't have any suggestions for FL lenders, but I have a few foreign national clients and getting an American Express card on the strength of their international bank credit has gone a long way towards making the process easier for them working with US lenders.

Any suggestion on how to go about sending the offer ( hard copy / Phone conversation) and how to express my interest in the property to the current owner?

Do you think it would be better to narrow down the criteria even further as you expressed?