Are you having trouble filling spots? If so I would change your approach as it sounds like you are telling interviewing families that you plan to move to a house. If I were to hear this in an interview (or before signing a contract) I would run. The last thing I want when I find a daycare is a major change. Leave this info out, sell your current condo to them (give reasons why it DOES work for your daycare) and then after they sign up and you confirm a move tell them, they will have a bond with you and will be more willing to follow you.

As for the nanny/babysitting. Saying 10yrs of nannying typically implies you worked 10yrs as a full time nanny. To most being a nanny means a Mon-Fri 8-5. Most teenagers are in school, not working as a nanny so it causes a bit of confusion. I worked many years a nanny, during school breaks and part time when in university.

Be confident and firm in your policies so parents see you stand by them. If you look unsure they will push to get their way (some not all). Sell your age to families...being younger can mean more energy etc. I'm not saying it's true there are plenty of people out there wayyyy older than me that have wayyy more energy but if your young age is giving them a bit of concern just spin it in your favor...just because the parents are older than you doesn't mean they know more, have more experience, or have any reason to get their way so be confident and firm.

I don't know how you pull off organic, Montessori on $35 a day! both cost a 'normal' daycare a lot more'. If that is a lower price for your area keep in mind that you attract different clientele if you are at the low range for your area versus the high rage for your area. Being at the higher end takes longer to fill spots but is sometimes worth it!

As for late fees, I think you mean they are paying late, not late pick ups right? YES, if it's in your contract then charge them. It will soon get their act in gear. If you don't charge them, don't make it clear they are breaking the contract then they have no reason to pay on time. Let them know now what to expect, a late fee with next late payment, and a notice of termination if they pay late 3 more times (or what ever your policies state). You will need to be upfront and make this known BEFORE they are late again...as they have come to learn there is no late penalty.