I believe "R/L" is revocable living, so the owners are still alive.

If Landlord must provide lawn care or garbage removal, such shall constitute a breach of the Lease by Tenant and is grounds for eviction.Tenant shall not remodel, paint, structurally change, nor remove nor add any fixture from or to the premises without the written consent of Landlord.

Put one on the lease, allow sub-letting with consent, that makes your lead tenant and parent responsible for rents.

She would probably also have to consent to the lien on the property in an undivided interest.

Ask the Recorder of Deeds.I suggest you get to an attorney, do a standard lease, a separate straight option agreement, both could be assigned with owner's consent not being unreasonably withheld, get a power of attorney to do repairs or a construction contract would be better, you as a tenant probably can't pull permits.

Also, tenant in the top unit has a dog which is not allowed without written consent and there is none or a pet deposit that I can tell.

This Contract is transferable with the written consent of the ownerand with a transfer fee of 3% of the purchase price listed herein.

You just posted the  rules, yes if you can show a legitimate business connection where the information is critical to underwriting in the business transaction you can pull credit without consent of any kind by the borrower!!!!!!!! 

You can't structure a financing agreement and assign it without the lender's consent, doing a wholesale deal the seller needs to finance to your buyer. :)

When he sets settlement have him inform you so you can get a copy of the buyer's HUD with his consent, this is to cover you tax wise for your records.