brussels/london britain offer pay much european union demand settle brexit divorce bill bring two side close agreement key obstacle open talk future free trade pact eu source say tuesday offer british newspapers value around 50 billion euros 44.3 billion pound reflect bulk outstanding eu demand include london pay share post-brexit eu spend commitments make britain leave march 2019 well fund eu staff pension decades come british government official say recognise account talk go ahead visit prime minister theresa may brussels come monday eu officials close negotiations stress work still continue ahead may talk european commission president jean-claude juncker chief brexit negotiator michel barnier eu diplomats brief progress say british offer promise financial settlement two side one say close deal nonetheless others caution britain yet make fully commit offer essential agreement 27 member state could yet take grant eu set condition significant progress three key elements withdrawal treaty would accede london request negotiations free trade pact could keep business flow brexit 16 months set deadline monday progress make eu leaders give green light summit dec. 14-15. issue right eu citizens britain eu negotiators still press britain accept european judge final say enforce right financial settlement many british businesses argue may make order avoid disruptive cliff edge departure single market forthcoming thorny outstanding issue irish border ireland remain difficult issue senior eu diplomat say irish prime minister leo varadkar avoid disruptive snap election deputy resign tuesday insistence party prop minority government britain yet satisfy eu include irish demand clarify would avoid hard border customs post land northern ireland eu many fear would disturb fragile peace british province brexit bill juncker estimate britain would owe roughly 60 billion euros eu officials say brussels will work may massage figure order help win back hardline brexit supporters past insist britain owe brussels nothing britain financial time say london agree assume liabilities worth 100 billion euros say net payments many decades could fall less half amount european commission decline comment britain brexit ministry say intensive talk continue two side try find way build recent momentum talk take next stage sterling rally around percent u.s. dollar investors take report sign risk britain leave eu without deal widely see damage economy diminish britain close deal brexit bill eu source