First of all, it would be really wise to get an attorney to review the draft lease because it is most likely all in the grantee’s favor, not yours. A good attorney can get you better clauses and hopefully a higher royalty and higher bonus.
Most of us would not want a two year option to renew as it gives too much power to the grantee.
Really bad idea to hand over a lease without getting paid. They can file it and you may or may not get paid. Many of us will have an attorney or accountant hold the signed lease until payment is received (upon completion of title), but they cannot file the lease until we are paid.