Renting by Room - Making a deal to Leave

[Dustin Baldwin]

So here is a rather interesting situation that I would love some input on. 

I rent my 3/2 house in St Pete, FL by each individual room. Two girls (one a close friend), just signed leases as of September 1st. The 3rd is month to month. Lets call them A, B, and C tenants. 

A) Good friend, responsible, renting the master for $650

B) Stranger, other two girls already complaining about her, renting small room for $550. 

C) Been in the house over a year and lease is about to expire this month. Super cool, responsible girl. Also has became a friend over the year. Renting $550

My predicament: I have to relocate back to St Pete from TN and am looking to move back into the house so I can have a place to live and work on fixing it up to sell in 12 months. Tennant A & B want this to happen because of their immediate dislike of B. I emailed Tennant B) 4 days after she moved in (she's not unpacked yet), offered to give her SD back, along with full months rent and utilities, ultimately giving her a month free if she would move out by October. I gave this as an option, not a demand. I explained if she did not want the deal that I would give Tennant C the 30 day notice to move out since she does not have a 12 month lease in place. 

She has come back and demanded an $1,850.00 stipend in addition to all of the rent and utilities back for her to accept this deal. 

I am clearly not taking this as it is unreasonable. She only has a mattress in the room with 3 boxes. (coming from college). So I have mentioned that I will give the notice to tennant C and move into that room. 

Now she is telling the other two that she would feel uncomfortable if I moved in and does not want to live with me. 

So here are my questions I need help with: 

-Does she have any legal recourse if I move into the house? Especially after I gave her the option the break her lease? 

-If I didn't want to kick C out, could I turn my 4th room into a bedroom and move in without any legal recourse? The lease specifically states she is renting (1) room, shared bathroom, and use of common areas. No specifics on who lives in the house. 

-When I go to sell this house, does FL require the buyer to honor their leases or can they terminate the leases? As it stands I do not have a clause describing the selling of a house and notice to vacate. 

-Should I just look for an apartment and save myself the battle of trying to live in my own house? 

If B does not take my original deal, her situation is not going to be good because the other two do not like her pettiness and princess attitude. If I move into the other room, she will feel uncomfortable. Sounds like a good deal to leave if it were me, but again I am unsure of any laws buried deep in the FL State Statues that I am not aware of. 

Sorry for the long winded situation, any help would be greatly appreciated!!  

[Mary Ann Aulbur]

If your lease did not say how many roommates and there is not an ordinance against 3 or 4 unrelated people living together, move in to the 4th bedroom.  Whoever does not like it can move!  Just do not apologize to them.  It is your house.  And if you do not move in, visit frequently.  Quiet enjoyment means you do not go in their room.  They are not in charge of entire house.  I have had roommates, and they will complain but if it is not illegal or in their lease, ignore them.  If they stop paying rent, evict immediately.  Roommates can be great and can also be high maintenance.