Hi. We have email exchanges outlining our intentions and we're each covering (for-want-of-a-better-term) stake-holder bills e.g. he covers x, y I cover house-insurances, life-insurances, bins, agent-charges. I've been the more hands-on in dealings with the solicitor when we purchased, although obviously it was his signature alone on deeds/mortgage etc (we're not married).
Yes, there is acknowledgement of monies paid via email/bank-statement transfers, although to be fair - I haven't paid as much as I'd have hoped for due to circumstances, but that is hopefully changing now.
House is in positive equity