These include helping people with missed credit card payments.
Foundation Home Loans has made a series of criteria changes across its buy-to-let product range.
These include assessing missed payments on credit cards alongsidesimple communication blips and other revolving credit.
The lender has also introduced products for clients with two, three or four missed revolving credit payments in the past 24 months.
Jeff Knight (pictured), director of marketing at Foundation Home Loans, said: “We have seen significant growth across our buy-to-let range in 2019, particularly in terms of servicing portfolio landlords and developing our limited company offering.
“We recently enhanced our residential criteria and are now doing the same for buy-to-let to ensure we continue to provide more solutions to more intermediaries in 2020.
“So, if intermediaries are looking for a home for their more complex buy-to-let cases, it’s solution found at Foundation.”
Foundation has widened the products available to first-time landlords who are looking to finance standard properties.
The lender has also made a number of rate reductions across its buy-to-let range, with 5-year fixed rates now starting from 2.89%.
The remortgage specials also have their £125 fee waived in addition to retaining the free valuation and £250 cashback.
End dates have also been rolled on to 30April of their respective year.
Foundation’s buy-to-let criteria currently includes an ICR of 125% of the pay rate for 5-year fixed rates for limited companies.