I have 3 houses and each of them I bought with 20% downpayment and the rest on mortgage. I am doing short term rental on them so my lender would not consider my STR income as part of my income. The 3 houses in total now has about 2M in equity ( my downpayment + appreciation) and I was trying to buy another one. However lender informed me that based on my salary income, I can only borrow about another 200K (which is not enough to buy any house in my area).

Any ideas on how I can buy another house with current situation? I am looking to buy another one close to 1 M with 200K downpayment so if I can only borrow 200K more I am about 5”600k short on it.

Many thanks and looking forward to some great ideas!