A: If you want to lock in rent for a longer period, we can discuss options. 

From what I understand it takes longer to close on these loans and their are more hoops to jump through so as a seller I may be willing to take a lower amount to lock in with a more guaranteed sale. 

Sure, we can all agree like @Anthony Dooley mentions that if they sign the agreement, they sign the agreement and they are 'locked' in for a full year's worth of payments regardless if they get evicted or not - that is true, they did know what they were getting involved with prior to signing your lease and should be responsible HOWEVER, just like real estate most outcomes in evictions are mostly local and completely left up to the decision of the judge, REGARDLESS of what your lease says - for instance if your lease spells out actions to be taken by the tenant which are against the law, your lease is void and you may even face legal consequences; or even if your lease is deemed 'fair' and 'lawful' it doesn't mean that a judge will choose to enforce it for you especially if it seems 'lopsided' - it's legal but, not enforceable. 

All the rooms should have their own locks.

Another option is asking the tenants if they'd like their locks replaced and giving them the option to keep their current locks if they prefer.

Your post sparked a question - is there a legal requirement to change out locks on turnover to protect the tenant, or is this simply a 'best practice'?

Maybe there are write offs for each of you.And lastly...Locking it up!

Then lock them into a contract.

Then you'll be able to get all your cash back and lock in the best rates on your permanent financing.I have two contacts around here that will do 10% down @ 10% interest.

Also, I would switch out the locks on the doorknobs so people can’t accidentally lock themselves out.