Thanks for your patience.
1. I would apply for child maintenance now - the court will base the decision on the CMS guidelines anyway.
2. Yes, you can make an application for interim maintenance (maintenance pending suit) when you file for divorce.
3. If you have registered your home rights, then the property can't be disposed of without your knowledge and consent.
4. You can represent your self in court but if it goes to a final hearing, you may want to use a solicitor or barrister for that.
I'm pasting some general information about interim spousal maintenance and legal services payment orders (which may assist) here for you:
Interim maintenance is paid during divorce proceedings and is intended to provide financial support to a spouse until a final financial resolution is reached. It can be paid by either party, but is generally paid by the family’s highest earner. If an agreement cannot be reached, you must obtain an order from the court to secure interim spousal maintenance, and it is therefore advisable to seek advice from a UK family law solicitor. Interim maintenance can be applied for if necessary even before Decree Nisi. Maintenance can be ordered any time after divorce proceedings have commenced and if the court decides this needs to be done quickly it will make a temporary order, this can be called an Interim order, maintenance pending suit or interim periodical payments, they all mean the same thing. It is always better to try and reach an agreement with your spouse if you are on good terms to set up a payment until the finances have been approved and sealed by way of a consent order. If things are not amicable and you are needing financial assistance from your spouse (this can be either the man or the woman) it is best to speak to a solicitor to apply to the court for the interim once you have started divorce proceedings.
There is also a Legal Services Payment Order:
An LSPO is an order that one party to a marriage or civil partnership must provide the other with funds in order to pay their legal fees, whether as a lump sum or a monthly amount. In order to make this application, the applicant has to put together a detailed estimate of how much they are likely to need to fund the case and explain why other sources of funding, such as a litigation loan or legal aid, are not available.
LSPO applications are often made at the same time as an application for maintenance pending suit, which is a form of maintenance put in place before the final financial settlement to “keep the ship afloat” in the interim. The applicant puts together a statement explaining their basic needs and what existing sources of finance (work, savings, loans) they have available.
I hope this assists - let me know if I can clarify anything for you?